For both guys and girls, though I presume girls have more choice. Since I was young I have used a variety off different things to pleasure myself, the weirdest being a sewing machine!
I was making bread one hot summer afternoon, and was buck naked. As I was kneading the dough, my cock and balls swinging back and forth was causing my cock to get fully erect. It occured to me to butter the ball and dough and I slid my cock into it. It was so warm smooth and gripped my cock like a glove. Pumped a full load of cum into that bread, let it rise and popped it into the oven.
No, I think I actually threw the loaf away after it came out of the oven. didn;t have kids at the time, just me and the wife.