Lovehoney are always sending out products to their sex toy testers.

Just create an account, add some reviews of the sex toys you already own then you create a wishlist of the products you want to test and then if you're lucky enough, you'll get them to test... Rinse and repeat.

I saw a thread on here (can't find it now) asking for testers.

Found the post here: http://www.sextoyforum.co.uk/showthread.php?tid=65