If you like Tommy Cooper then try to search out some Tim Vine jokes - the Tommy Cooper of our generation.
I've been to see him @ Edinburgh fetival last year and he was hilarious.
Things like:
I sent my girlfriend a big pile of snow for her birthday and then called her to see if she got my drift.
I went to the local dance club to see if i could take some lessons. The teacher asked me how fexible i was, so I told her "I can't make Tuesdays".
A guy phoned me the other day and said "I'm going to come round and cut off the bottom of your trousers and put them in the library". I said, "Well, thats a turn-up for the books!"
The only other one I can remember is:
A guy I know started a hobby of packing himself into smaller and smaller suitcases. He can hardly contain himself!