How about Jetsetter (Aero Glider) on N64 DK Jungle Parkway? That has GOT to be a meme. Then again it will we a single track IGT. Any tweaks to it could maybe work.

Maybe the Waluigi Stadium 4-lap Challenge?

150cc, Hard CPUs, Strategic Items, try to get the best time possible on GCN Waluigi Stadium. However, there's a catch. You must take a backwards shortcut (Shown in this pic: http://prntscr.com/kha8dd) on the first lap (which doesn't count the lap), basically completing 4 laps, trying to get the best time possible. 1st place is NOT a necessity. Only time is counted.

Any questions/comments/concerns?