ThinkGeek.com takes $5 off orders of $25 or more via coupon code “9C4”. Or, take $10 off a purchase of $50 or more via coupon code “PUZZLING”. Those are among the best dollar-off coupons we’ve seen from ThinkGeek.com, which sells various geek toys, apparel, and more. Shipping starts around $7.
A best bet is the R2-D2 Plush Backpack (pictured) for $34.99 after the $5 off coupon plus $6.69 for shipping.