Brother P-touch PT-90 Personal Label Maker – $9.99
Label keg lines, kegs, manifolds, storage bins and more.
Normally $29.99, Staples offers an instant discount of $20. Shipping to your local Staples Store is free.
EDIT: HBF Reader Steve also pointed out This Amazon Offering. Thanks Steve!
Brother® P-touch® PT-90 Personal Label Maker – $9.99
Check sale or product page for current availability & pricing