I remember doing streamer cuts using toilet rolls. Great fun.
Some things that keep me amused:
* Steering a C150 or similar using the doors.
* Using trim to land
* Talking a student through an instrument only approach & landing
* Dipping a wingtip into a cloud then steep turning to observe the vortex
* Obstacle course around clouds. Or even picking an altitude where I'm skimming through them.
* Practicing a high speed ILS approach, leaving it as late as possible to arrive configured & on speed. Interestingly I needed that last night when I was racing deteriorating Wx during my arrival & approach.
* Beer bets on who could keep an object such as a pen floating the longest
* Beer bets to place the mainwheels on a nominated aiming point. My students invariably chose the numbers as the smallest readily identifiable object. Free beer for me.
* Precision flight: My usual accuracy target is +/- 20' or a bit less, but if I feel like it I'll aim to keep the needle wholly within the desired altitude mark. Similarl things for heading, airspeed etc.
* How short a landing can I do. Skidding not allowed.
* Max height crossing the upwind threshold after take-off.
* Wonder what other things this GPS can do...?
* Try to find some AM broadcasters now that Atlantic 252 turned into a bloody sports station.