First of all, going naked into a ritual can be a way to show your humility before your deities. I’m sure they won’t mind one way or another, though they might appreciate the gesture. Clothes can also be an encumbrance. The fabric, the cut, the way the clothes hang on your body, even the color can be a distraction during a ritual.
Certain types of fabric are not recommended for ritual use. The synthetic fabrics especially are said to interfere with the vibrations you may raise. Cotton and wool are the most suggested fabrics for ritual garb, but most ritual garb you can buy will be of synthetic fibers. Constrictive clothes also interfere with spellcasting and so loose gowns or robes (be careful of open flame) or no clothes at all are usually recommended. Color is another important aspect. Colors pose a very symbolic connection in magic. The proper color ought to be worn during the proper ritual, or at least neutral colors should be worn so as not to interfere with the rite.
If you wish to wear clothes during your spellcasting and rituals, they should be consecrated to only these uses and worn at no other time. It’s all right to occasionally work spells in non-magickal garb in a pinch, but having "special" garments lends an otherworldly feel. This can be a way to set up a certain mind frame to slip into for magickal work. For planned out rituals and normal spellwork, at least one set of robes in white or black or some other unobtrusive color should be considered.
Many traditions or paths have a "standard" wardrobe. This reflects the ethnic background of that Path. Scots may wear kilts, and Druids may wear hooded robes, etc. You may wish to embroider magickal symbols into your ritual clothing or "hide" small magickal items in the seams and hems to act as talismans for protection.
If you practice out of doors, clothing can really be a blessing no matter what your Tradition dictates. It keeps off the bugs and defends against too much exposure to poison ivy, oak, and sumac. It also keeps off the elements. A bad case of sun poison is just as life threatening as a nasty case of hypothermia. Both can put you in the hospital. Remember, the gods don’t suffer fools lightly, and they’re not going to protect you from the elements if you choose to expose yourself.
Finally, I’d like to mention personal talismans. Some people seem to feel the more the better. Others wear nothing at all in the way of personal talismans, though they may have a few hidden tattoos (I haven’t asked). You shouldn’t wear so many that they get in the way or they cause a clinking-clanking distraction. You should also be aware that, though they may be protective, too much could cause a garish clash of energies. If you’re not particularly sensitive to these energies, you won’t notice so much. But be sure that others who are sensitive will notice and may begin to avoid you. If they are able to see auras, you’ll stand out like a neon light to a migraine sufferer. For myself, it bothers me like a barely audible noise coupled with a certain physical sensation of air tension. Others may experience it in their own way.
Most of us are not metal workers and are certainly not going to be able to make a talisman of metal. I for one am extremely sensitive to metals, and I also work better with organic components than mineral ones. If these reasons also apply to you, this craft may prove to be very useful indeed.
disc of wood (or shell, water-rounded stone, clay)
To begin, you will have to design your talisman. There are many kinds of symbols you can use, from Teutonic Runes, Ogham, or hieroglyphs to astrological squares, sigils, or simple pentagrams. The choice is yours and should be adapted to your purpose. If you choose to make a planetary talisman, you will want to try to match any colors you use and whatever material you use to its proper planet. To hang your charm, you may wish to drill a hole through it and string it along some twine (etc), or you may make a “net” around it.
If you choose to use wood for your talisman, cut the disc from a branch of a fruit-bearing tree and engrave or burn a symbol of protection onto it. As you do this, envisage what or who it is that you wish to protect. When the engraving is finished, sand the disc of wood until it is smooth as you wish. You may wish to stain, paint, or seal the wood as well. Give the charm time to dry, then enclose it in a box, a lightproof bag or wrap it in black cloth until you are ready to use it.
If it is more convenient, you may choose to use a shell, stone, or piece of clay for your talisman. A shell or stone may be painted in whatever symbols you choose, then sealed. If you decide to use clay, you can impress your symbols into it while it is still moist and then let it dry. You may also choose to paint it before sealing it.
Creating your charm does not necessarily mean it will work. Of course the symbol itself has some power, but your talisman will not truly be empowered until it has been consecrated and charged.
Some Symbols for your use
Clothing is optional in some Pagan Traditions. If you are dedicated into one of these traditions, you may have been taught to practice "skyclad." Not belonging to such a tradition myself, nor having discussed this with anyone in such a tradition, I can only give my own ideas on why this might be a choice for you outside of these Paths.
wood working tools, paints/stains
sealant
Oriental Planetary Yantras
Medieval Planetary Squares
Instructions for Planetary Sigils
Runes
Hieroglyphic converter (made for names, but simple phrases may be substituted
Ogham
Various symbols
Cultural symbols