No worries! He's a practical character so he's most into things he can functionally use. Tools, materials, nonfiction books to feed his nerdy learning desires. If we're aiming more fun than function give him some nice bolts of fabric and he'll grab some dressmakers shears and thread on the way out so he can play dress-up with people over the travel arc. Everyone's tailoring taste needs an improvement. Otherwise, anything else in those categories is good!