Can you buy an iTunes voucher for £5?

[SylviaBells]

I want to top up a present but we have a strict limit on what we spend (agreed between friends) - it can't be that the smallest amount for an itunes voucher is £15 can it?

It's the smallest I've seen.

If you go to iTunes you can buy and print your own vouchers, not sure how small you can buy, I got one for £10 though.