I claimed a DSLR for around 1800 on the GST tourist refund.
Declared it on the way back in, and the guy checking the form said 'oh, that's fully depreciated now isn't, fully used right?' and crossed it out on the declaration form, I guess he couldn't be bothered processing it.
Also had them clean my mountain bike shoes too, there was dirt left on them from when I left, on the way back in customs gave them a proper scrub, like new!