>>2593417Well, I'll echo
>>2593393 about going for something that takes Instax Wide film. The Instax Mini film (which both the Mini 90 & the Lomo Instant use) is about the size of a credit card which is quite disappointing if you were expecting something like a classic Polaroid.
Amazon have Wide cameras for under £70 so you could get one of those & a whole bunch of film, or just get a few packs of film & let your mother keep the rest of the money.