To start, you'll need 1 skein each of white and black bernat super soft yarn and a size K crochet hook. There's some great tutorials out there for how to change colors of yarn as you work, my favorite is here. It also explains a bit about crocheting over the unused yarn. Oh, and you'll need this handy-dandy sketch I did:
Row 1: With black, chain (ch) 28.
Row 2: Skip the first 2 chains from the hook, HCD in 3rd ch from hook, HDC in each remaining ch.
Rows 3-5: Ch 2, turn. HDC in each remaining HDC.
Row 6: Ch 2, turn. HDC in next 8 sts, switch to white yarn at end of 8th st, and HDC with white in the next 10 sts, making sure to encase the black yarn so it stays with you as you work. Switch back to black and HDC in the last 8 sts.
Rows 7-22: Follow the gridded skull above, changing yarn colors accordingly. Be sure to encase the unused yarn and chain 2 before turning every row!
Rows 23-100: Ch 2, turn. HDC in black in each st.
Rows 101-117: Ch 2, turn. Work the same skull grid from the top of the skull down.
Rows 118-121: Ch 2, turn. HDC in black in each remaining st.
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