Acrylic bends with heat, cant recall what gas you use though, at working pulling a all nighter if you dont figure it out let me know I can call my buddy in the morning, with the right gas it can be tweaked and even flows out any blems like scratches, pretty neat to play with and flow out scratches.
I played with regular gas out of the gas/acy torches on some the engraving I did if your really careful it can be done that way but sometimes leaves a blem where you were with the heat.