I’m the same way, but mine is “Toxic” also by Brittany.

This is probably your best advice. Any solvent that will completely dissolve the polyester is pretty likely to damage the plastic part as well, but running some isopropyl in there could weaken the fibers to the point that the motor can break them up. Higher concentrations of isopropyl will work better, but even the 70% stuff work if you can heat it up past 150F