Good example.

http://www.flickr.com/photos/manuelino/4453180876/

Only try this with canon lenses.. !!

Ofc.. the weather proofing right?

ahaha had to laugh, since I expected it to be a serious vid before I clicked the link

Your post ruined the surprise

Well now I know what to do with my old lenses! Coffee mugs!!

Too funny! LOL!

However, I do know they make replica lens coffee mugs already.

But then as I paused the movie and went second by second, you can see at one point inside the actual lens, and normally you would see the track that the lens
rolls on to focus. I didn't see it, so could it simply just be an actual coffee mug itself?
I mean, that's a $1600 lens and comes with a 10 year warranty from Canon, if it broke why would you down it in the sink instead of sending it off to Canon??

http://www.aliexpress.com/product-fm/288285339-Authentic-24-105mm-Canon-Lens-1-1-Scale-Mug-Coffee-Cup-wholesalers.html