The underwear voucher is a great idea - I would have loved that!

I didn't have a a baby shower but when DD was born a good friend gave me a baby thermometer, baby nail clippers and a little comb/brush set all wrapped up in a little basket lined with cloth nappies. So practical and handy as I hadn't bought those things yet! She also threw in some hand cream as well for me. I'd suggest something small for the mum to be as well!