I'm currently drinking out of one of the following:
http://butchesbrew.files.wordpress.com/2008/08/kwak2-l.jpg

That i drunkenly stole from a bar a couple of weeks ago here in Amsterdam, usually at my favourite pub back home (Sheffield) you have to pay a £10 deposit to get the glass if you order a Kwak, because so many people used to steal them (and also they have a base that is almost completely spherical so they can't stay upright with the stand, so i bet quite a few got broken). It's so great, closely followed by Delirium glasses:
http://www.beerables.net/ProductImages/wetten/glassware/Delirium%20Glass.gif

Anyone else a sucker for Belgian beers and the glasses they come in?