We bought four of these as gifts for granddaughters on HAL last winter and they were probably one of the best gifts we've ever picked up -- ages 3 - 9. But the girls got to do the opening at home -- they were given a little implement for this and the kit included a silver locket thing and chain.
They were very popular and we managed to pick up the last few. $25 was the sale price as I recall.
I'm not sure I'd buy for an adult but for kids they're great.