DD1 (7) wants Jelly Fun.
You make up shop bought jelly (not included) and let it set, put it in this thing and twist it and it chops up the jelly. The gummies are just a cube of undiluted jelly microwaved in a mould.
It is £15 for something that does the job I could do with a potato masher. 
Do I suck it up and buy it anyway?