Can you buy equipment to do tongue piercings at home?
I'm sure you can if you are a professional piercer. If you are not you should not do this since the tongue is the one of the strongest muscles we have and if you pierce it wrong you can get into a lot of trouble. It's just one big muscle. Get yourself to a professional person to do this and if you are planning to become one go see one anyway to find out where he bought his stuff from.
Is there something you can put in your tongue so the hole doesnt close when you cant have your tongue ring in?
There is this thing that is not a tongue ring, but it's plastic and you can't really see it when it is in. Idk if there are places that sell them. If not, you could get one from a tattoo/ peircing parlor, I'm pretty sure. == == You can buy glass or acrylic retainers that will hold the piercings shape and allow a normal barbell to be inserted at a later time.