Do you know what these are?
Some people call them pencil cozies. The name on the package says they are gel grips - for pens and pencils. They are found in the pen/pencil section of the store, and there are many in a package.
Here is how crocheters use them -
(rereading this I see I used a lot of 'buts' here, BUT taking them out didn't seem right either! This is the way I talk, so this is what you get.)