The UnDecor 500c.........You want one
Its fast and loud
Yep ticks all the boxes for me so dont stand there and take you decorations of your tree one by one just spin em off. The decor 500c is basically a pitbike engine (i love them at moment cheap and easy,see there website here for details) mounted on a frame with a mobility scooter wheel driven directly of sproket shaft. I used the sproket as a way of fixing the shaft as it has the pattern in it to fix on to output shaft so is much better than trying to clamp sothing else onto it. Tree was also mounted on a good solid bearing so when spinning of balance the holder stays true. there you have it another stupid idea from the brain of furze.