I was working on my run of Funky small for the SDA SMW Individual Level Runs when I came across a cool glitch. If you jump up onto the song blocks where a Sumo Bro stands about midway through the level (after you kill the Sumo Bro), on top of the leftmost song block and the one right next to it are 2 invisibe blocks Mario can stand on. If you jump onto the row of song blocks from the right, and then run to the left, you can be pushed into the invisible blocks. You must hold right or these invisible blocks will push you out. When you are inside the invisible blocks, Mario will bounce up and down rapidly on the song blocks (without getting air) and he will rapidly collect coins. These coins are unlimited, and keep coming until the level time runs out. The coins only come from the leftmost block and the block right next to that, but you can only collect them from the leftmost because the other one will push you out.
I had just recently downloaded snes9x, mainly so I could watch JXQ's amazing demo videos of VD3, Groovy, and CM small (thank you JXQ). I decided to make a video of this glitch since I had the emulator. It is one of my first times playing on an emulator, and I'm not used to the keyboard, so excuse the sloppy playing.
Here is the video.
Oh, and another glitch I found on Funky: it is sometimes possible to throw/push a shell through the skinny green pipe that has a Dragon Coin to the right of it and has the two rows of song blocks and ? blocks right next to it. I am wondering if it is somehow possible to push Mario through this pipe, since you can get a shell through it. Every time I push a shell through, I am standing on the left side of the pipe, I haven't tested the right side.