Have you tried Lulu or Carrefour? - sometimes they get some in. Home Centre had some when I first arrived 2 years ago, but I haven't noticed any since - you could take a look around though just in case.

Hope that helps - oh, and sometimes shops like Dasman, upstairs at FFC on the airport road or Safeer have things like that in their glassware sections - but you'd have to search them out.