Is there a way to counteract the problems with weighing hot objects? I am currently performing an experiment in which it would be greatly beneficial to be able to accurately measure the mass of a hot object without waiting for it to cool. The current plan is simply to place the hot object in a crucible with a lid and attempt to measure the mass quickly, before the crucible has time to heat up. The thought is that the convection currents around the object won't matter as much if they are contained within the crucible.

I will be testing this method in the next few days for accuracy and reproducibility, but would appreciate any other ideas to mitigate the problems with weighing hot objects, or insights on how this idea could be better.
Depending on geometry, mass and temperature (hot is pretty vague), you might be able to use an inertial balance.

If the device used to hold the sample is rigid, you could calibrate its resonant frequency with and without the sample and with known weights.

See this high school lab and a video of the procedure.