Voucher get's you £8 off adult entry to Alton Towers, Thorpe Park, Chessington, and Madame Tussauds.

This Voucher is valid until 25 Oct 07 at Theme Parks and 31 Dec at Madame Tussauds London excluding 9-13 July at Alton, 16 - 20 July at Alton Towers and Thorpe Park & Zoo days at Chessington World of Adventures & Zoo.

nectar.com/tussaudsvoucher/

You probably need to be signed into Nectar.com for the link to work, but I'm not sure :P

It won't let me post the url so just copy and paste the link above adding the usual stuff at the beginning.