The unicycle section! Also, some skaters. (There's a separate bicycle joker and a skater joker section). The first unicyclist is particularly tricky.
The next joker vintage jokers is the Roman Goddess Fortuna. She is the goddess of luck who probably originated as the goddess who controlled the harvest and hence prosperity or ruin. She is often shown blindfolded to emphasize that she seemed to bestow good or bad luck irrespective of other attributes. The wheel on which she is riding is often portrayed as the wheel or fortune and in her hands, is the a rudder which she steers with (not a sickle). As the goddess determining ill or great luck, she is a natural fit with cards. It's unclear to me where this image came from: Was it created for the cards or is it a recreation of an older image.
And a clown on a sort of unicycle. Actually, it looks like a ball. But I thought he belonged here with the others.