Simply determine an area you would like to make into a chalkboard and start painting.
North Valley Candle Molds - Lots of basic shapes that you can make into something more exotic, and some that are more interesting, like the Yin and Yang symbols.
A conversion van with lots of headroom makes an excellent choice, but keep in mind that some people also look for old school buses, bread trucks, and any other large vehicle to make into a camper.
The song has a catchy tune that even amateur dancers can make into a flashy series of movements.
You could make beaded wreaths out of these three colors of pony beads (or just green, or just green and white) that you could then make into pins.