Just in case you still need inspiration for item combinations ... There's a well-known app that has a lot of them -- Alchemy. Here's a list of 380:

http://www.abctrick.net/2011/06/alchemy-highly-addictive-games-for.html

There was once a thread in the pre-Divinity era that dealt with all sorts of sil.. interesting item combinations. Isn't there a way to get all the old posts back?