Dynacharge 6-battery charger - free
It's from probably 7 years ago but it still works... I just never seem to use rechargeable batteries.
Large block of sculpting wax w/ kettle - $8 or obo
This stuff is great. Leave it in very hot water and when it's warmed up, it's as malleable as clay. You'll never have to worry about inhalling dangerous clay dust ever again.