The "earliest" samples of "acrobatics" that I have seen at weddings were bottle dancers, which seemed to be popular among Hassidim, and I guess originated from Russian custom.
The Talmud mentions in several places that it is a special mitzvah to gladden the bride and groom at the wedding. I recall reading a story mentioned in Avot Derav Natan that one rav would interrupt his studying when he saw a bride and groom pass by him on the street, and he would dance before them.
Gladdening the bride and groom can be done in various ways, I assume. But, from what I could find, in Tanac"h it seems to mention music and joyous sounds, and dancing. It doesn't mention acrobatics or the use of "shtick", like wearing funny hats, "leis" or costumes.
Is there any older mention of physical "stunts" or similar physical feats/skills performed at Jewish weddings such as a mentioning in the Talmud or similar? When and why was this introduced as a means of gladdening the Chattan and Lallah (bride and groom)?