I received as a free gift one of those cheap magnifying glasses made of cardboard for reading, and one day, I had the idea to put it through the lens of my Debonair. After taking a 'blur' shot, I reshot the same scene without the magnifier. Voila! Unpredictable blurs and bokehs!
**After almost shooting the whole roll, I realised to my horror that I had accidentally nudged the lock on my camera and the cover had slid open! Thankfully I only had light leaks instead of losing the whole roll!