Don't really do much now, but when was younger:
Shop vac, because most household vacs are too small, with a hole in the tube or attachment, so you can control how strong it sucks. If you get it right and let air in from edges at the base it vibrates the cock at an ultra high speed. Can be nice.
I have a home made fucking machine out of a foot masager that works great with controllable in and out movements and speed. Slow to very fast.
A couple of Gel Packs suppose to be used to freeze and put in coolers the kind that are liquid and soft side. Heat them up a bit to make warm then lube them up.
Have to think about it but I am sure there was lots more in my teens and 20's