You can make a totally legal purchase of microspscopy specimens in the form of millions of cubenses spores in a sterile solution, several of them for about Fifty dollars of whichever currency we are discussing. They will helpfully include a microscope slide so you can enjoy your microscopy hobby immediately.

It may be the case that when accidentally applied to a sterile growth medium, such as brown rice flour in a mason jar which was autoclaved in a regular pressure cooker for about 45 minutes, that after a few weeks the microscopy specimens will provide you with a new way to look at the world.

Be careful though, It's really easy to inadvertently drop the mason jars face down in a plastic tub that you use to store perlite that you bought from walmart, dislodging this nondescript white rubbery substance onto some tinfoil squares or better yet a metal rack suspended just above the perlite.

If you forget about the mistake you made with the mason jars and the plastic tub for a few more weeks, and the conditions remain humid enough somehow, you will sometimes find a complex biological reaction has occurred in the chamber.

Its important not to harvest them just before the veil is broken, chopping them up with a sharp knife and stirring them into a pot of water set to a low simmer for about 20-30 minutes.

In any case, if you discover that you, despite your best efforts, have still made this error, you should strain the chopped peices out and discard the water, or "tea", in a way that conforms to local and federal law. Some lemon juice and/or Numi brand morroccan mint tea helps with the disposal.

You might need some friends to help with that part though, it can take about 6-8 hours. You'll likely have a little trouble sleeping after all that work, so make sure to leave the next day open. I also recommend getting a bit stoned first using recreationaly legal marijuana.