Just read a few different discussions like the prostate massaging one and was wondering what the most bizarre thing you guys have ever shoved up your bums was.

What takes the cake for me was definately the drunken night I decided to plant a spade shovel into the ground, pulled a connie over the end, spat on it, sat on it and drove her home.

A backscrubbing brush. It wasn't thick but it was long. I got over 10 inches in my ass.

A Maglite flashlight (D cell size) wrapped in Saran Wrap and a condom, with lots of KY. I have gotten it in up to 10 inches on occasion, but it takes a lot of patience!

It's pedestrian, but a cucumber. The highlight of the event was being a 16 year old boy arriving at the counter with three sizes of insertable melon, condoms and lube. The cashier and I died laughing shortly after I turned bright red.

Sears Craftsman #3 phillips screwdriver handle
Thinking about getting a #4

Nothing particularly odd...just routine household items....carrot,cucumber,candle,hair brush handle...the usual suspects.

When I was first experimenting as a teen, it was a piece of string cheese. Lol. I found I needed something bigger and more solid.

a tampon

During my teen years I used to try out every weird fantasy that would spring to mind. One day I decided to put of load of gelatine (mixed with water and left to set) up there to see what it felt like. Strange maybe, but it made a great lube!

I'm with kunfu40.
I've used a MagLite 5 cell (D cell) flash light in plastic wrap & a Magnum condom. It was awesome! With some practice I was able to take it right up to the the flare for the light.
By far the biggest (longest) thing I ever inserted.

Man....you boys are making me hot!

Early on when I discovered my favorite pastime in the bathtub. I was playing with an empty shampoo bottle when one thing led to another. I filled the bottle with warm water and squirted it in my butt. After I had squirted 2-3 bottles in me I would jack off. When I came, I blew out of both ends.

Hmmm recalling this memory has got me all hard. I think it's bath time!

My best buddy had hurt me accidentally when he entered me too hard, I was about to try again, with someone else. In preparation, I used a cucumber twice the thickness of his cock, figuring if I could get that in, I could relax and enjoy things with this new guy. IT WORKED!!

six inches of a small flash light. using hand soap as lube ( I dont recommend it), it slid in and out smoothly. Once it slid in for the first time, my cock got super hard super fast. Best organism till I had sex for the first time.