The three Metallica hamsters got the same things although their reactions were very different. Basically I wrapped up some treats in a sheet of paper with the intention of them gnawing their way through it to get to the contents. Sooty was the first to get hers as she was up and about when I visited my sister and her boyfriend. She was very curious, dragged it to where she wanted it and got through the paper within minutes.
It was less of a success with the Metallica Chineseys. Lord James sniffed his, decided that it might be just too strange and ran away. Lady May knew that there was something nice inside and had a sniff around but couldn't work out how to get in.
Here's the video of May...