One of my favorite companies at the moment is TapeSwell. They create this beautiful packaging tape that inspired Erin and me to create a special tape for all of our Haute Papier mailings. The new HP tape isn't here yet, but we'll be sure to share pictures when it arrives.
Check out these beautiful products in the mean time! My favorite is the purple lacy one. Erin likes the blue tinsely one. The tapes are available online for $7 for 27.5 yards. Not bad in comparison to what Kinko's charges for packing tape!