Adding a Super Mario Kart theme to a bucks party that is hitting the go kart track is a great way to kick start the fun. Dressed up in character seems to help people come out of their shells, particularly when some drinks are involved (once you’re of the track of course).
Make sure you choose the right character for the buck… and no, that’s not Mario. Probably Princess Peach is the way to go.
No need to test your seamstress skills, there’s a bunch of online stores that sell costumes that you can all suit up in. While you’re getting the costumes, its probably worth also looking at the party paraphernalia you can pick up. Being organised and getting everything you need to roll the theme off the track and into the rest of the night will help the vibe continue.
Set the buck challenges as well that are in the Super Mario Kart theme. Have strategically placed “?” cubes along the bucks party journey. Open the cube and the buck has to complete the challenge. If he can’t do the challenge, he drinks. If he meets the challenge, then he can nominate a proxy… but don’t make it too easy!