X-acto or other brand hobby knife
sandpaper of varying grades. maybe 200, 400 and 600
brushes
liquid glue (like tamiya cement)
CA glue (like Zap-A-Gap)
accelerator for the CA glue
low-tack masking tape
a pair of sidecutters
a block of wood to cut small parts on top of
clothespegs to hold parts together while they dry
tweezers
this is all i can think of, mim sure other people can come up with more stuff