I have made quite a few. I cut the profiles on a bandsaw (scrollsaw would do fine but bandsaw faster), then use an electric die grinder with a bit that is round and covered in little spikes to carve out the scoop. Before I got the bit I used various drill bits on the drill press and then shaped it with sandpaper. Most of the shaping is done on a stationery belt sander because it is effective. Like most things there are many approaches depending on what tools you have at hand.
