Monster headed snakes
If artist Hieromymous Bosch designed antique French buttons, I imagine they’d look like worms with heads & snakes. My reference book says these are Seps, snake-like mythological creatures with the heads of other animals. What do you see? I see a rabbit, dog & cat heads.
Ship of Devilment.
This design is said to be based on an etching by Peter Fiotner, a Swiss sculptor who lived from 1485-1546. It has winged beasties on a a boat & an oar whose end has a giant bearded devil with horns.