Ive got a good one. The first magic trick I ever learned, was one I reverse engineered at the age 4. I saw Bozo the clown on tv when I was very little. I loved that show. I saw him give two kids the opposite ends of a rope, and stuck the middle down his pants. When they pulled the rope tightened, and the rope came out with his boxers attached. I thought about it for days, figured it out (I was so proud of myself) and was so excited that I had to show it off at the Fourth of July family cookout. I hid that extra pair of ninja turtle underwear and rope in my pants all day. God knows where I found rope at the age of six. Performed it for my aunt and uncle, and the whole family got the biggest kick out of it ever. I performed it again and again, with some obvious reset, and I have been chasing the reactions ever since.
We have it on film somewhere, my family still talks about it.