This cross-stitch-kit-for-the-rest-of-us by Brass Monkey includes everything you need (besides the patience): an embroidery hoop, needle, Aida cloth, and all the floss you could possibly want. That's what they call the thread…you'll have to provide your own dental care supplies.

Features a 6" bamboo embroidery hoop, Aida cloth, and a needle.
Includes all the thread you'll need to complete the design on the front of the box. There might even be a bit left over–friendship bracelets, anyone?
Comes with a design guide–and tutorial instructions suitable for beginners & experts alike!