Cash-in-hand work in Derry/Belfast

Hi guys,

I have a Kiwi friend in Derry at the mo and he's finding it really hard to get work because he has no visa (he's too old to apply for one). Does anyone know of any ways to get cash-in-hand work in the Derry/Belfast area?

I'd really appreciate any suggestions cos my poor friend may have to head home early.

Thanks xxx