I'm thinking about getting myself one of those pocket trumpet thingys for my trip to Canada. I'd like to take something small with me so that I can practise while I'm away - it doesn't need to be of fantastic quality, just a playable, small instrument that I can annoy my sister and her husband with while I'm staying with them. I'm just about to buy a Serengetti pocket trumpet from eBay (~£100), I just wondered if anyone had any experience with these instruments? I can always send it back if it's rubbish, and I'm not expecting anything playable in band, plus I don't want to fork out £250+ for a Jupitor. Any good, or avoid?