These are my GU cards him:

• 2002 Fleer Genuine Touch Em All Game Base Jason Giambi #118/350
• 2002 SPx Winning Materials 2-Player Jersey Combos B.Williams/J.Giambi
• 2002 Upper Deck Ovation Lead Performer Jerseys Jason Giambi
• 2002 Upper Deck Rookie Update Star Tributes Jason Giambi GU JSY
• 2003 Bowman Heritage Diamond Cuts Relics Jason Giambi Uni
• 2003 Fleer Authentix Hometown Heroes Memorabilia Jason Giambi Bat SP/300
• 2003 Fleer Patchworks Numbers Game Jersey Jason Giambi
• 2003 Fleer Showcase Baseball's Best Game Jersey Jason Giambi
• 2003 Ultra Moonshots Memorabilia Jason Giambi Base
• 2003 Upper Deck Game Face Gear Jason Giambi JSY
• 2003 Upper Deck Honor Roll Dean's List Jerseys Jason Giambi "J"
• 2004 Donruss Elite Passing the Torch Jerseys Jason Giambi #63/200
• 2004 Fleer Genuine Insider Tools of the Game Used Bat-Jsy Jason Giambi #116/125
• 2004 Leaf Shirt Off My Back Jason Giambi JSY
• 2004 Leaf Certified Materials Mirror Bat Red Jason Giambi Yanks #77/150
• 2004 Playoff Prestige Changing Stripes Dual Jersey Jason Giambi A's-Yanks #62/150
• 2004 Studio Players Collection Jersey Jason Giambi Home
• 2004 Topps Clubhouse Relics Jason Giambi Uni
• 2004 Topps Clubhouse All-Star Appeal Relics On-Deck Circle Jason Giambi #63/90
• 2004 Upper Deck Authentic Stars Game Jersey Jason Giambi
• 2005 Fleer Platinum Diamond Dominators Jersey Silver Jason Giambi
• 2005 Upper Deck Matinee Idols Jersey Jason Giambi
• 2005 Upper Deck Trilogy Generations Present Materials Gold Jason Giambi Jsy #19/25
• 2007 Upper Deck UD Game Materials Jason Giambi GU Jsy