Ah, sure why not?
I decided to make a present for a friend who, similar to myself is on mind-blowing amounts of drugs for pain. (That's prescription drugs for all you hopefuls out there...)

So I thought I'd put up the pattern.
For one pill you need two colours of yarn, and suitable needle sizes. I used DK and chunky, with 3.75mm and 4mm dpns respectively.

Cast on 6 stitches.
Join to work in round as follows:
knit into the front and back of each stitch (12sts)
knit 8 rounds
Change colour and knit 8 rounds.
Stuff with some stuffing.
Knit 2 stitches together and repeat all the way round (6sts)
Cut 12" tail of yarn, thread through the remaining stitches and tie off.

I made a pile of them, and made them into a mobile. This will happily cheer up any friends in chronic pain you might know...