Yarn Butler by Prym

Two wonderful sizes, keeps your yarn balls from running away from you, inside or outside pull - both work well.

Yarnit: holds one ball of yarn, comes with a rubber stand that also opens up so you can hold small supplies, non-slippable

Big Sully: holds two skeins of yarn, has  needle gauge, handle, and a rubble stand that does not slip and will hold small supplies.