How to make a mini pumpkin (with light!)
All you need is top snow (NOT SNOW BLOCKS), a slab of your choice, a armor stand, a torch, and a pumpkin. Dig down 2 blocks of wear your pumpkin will be. In the hole put 6 layers of snow and place armor stand in snow. (can't place on snow so place it on the sides and gravity will do its thing) Hears the tricky part ON TOP of the armor stand place a slab on top and piston it until it is like at the position of the slab of the pic. Then place a pumpkin on the armor stand and place a torch in the same block location.