• Any thin yarn – I used:
o 105m/50g for the white
o 130m/50g for the brown one
o 425m/50g for the grey-black and black one
• 3 mm hook (I know way too big, but the only one I had available at the time)
• bottlecap
• needle for sewing (can do without, if you use your hook carefully)
• scissors
optional:
• wire
• keyring