Niecie there are some lovely 100% cotton yarns (I'm currently making a stetson for a 1yo in DB pima cotton) that would make wonderful chemo caps, not too heavy. The DB works up quite stiff on a 5.5mm hook but a 7 or 8 would probably be wonderful, especially in a big stitch?
Teddy granny square:
Colour A
Ch2, 4 dc in 2nd ch from hook, sl st to join
Ch1 2htc in each st, sl st to join
Ch1 #2htc in next st, 1tc in next st# around, sl st to join
Ch1 #2htc in next st, 1tc in next 2 sts# around, sl st to join
Ch1 5tc in next st, sl st in next 7sts, 5tc in next st, sl st and change colour
Colour B
Ch1 turn
2tc ch1 3tc behind 5tc shell, ch 2 sk 4, 3tc, ch 2 sk 4, 3tc ch1 3tc behind 5tc shell, ch 2 sk 4, 3tc, ch 2 sk 4, 3tc ch 1 3tc, ch 2 sk 4, 3 tc, ch 2 sk 4, 2 tc ch 1 3 tc, ch 2 sk 4, 3 tc, ch 2, sl st to join
Carry on as normal for a granny square
Embroider on eyes, mouth etc.
I've put one on Rinder's blanket, will do another for Blondes. It has a lovely pointy nose so I'm not sure if mine looks more like a hedgehog?? 