Ashley, while I admire your desire to work from home, I suggest you find something else to do until your son is a lot older. I don't know of any kind of printing that is safe to do around small children. If you do heat transfers you will need to apply them with a heat press, and that press will be out in the open at a temp of around 350-400 degrees F. If you do screen printing and dry with a flash dryer the temp under it is around 500 degrees F. Screen printing also includes the use of chemicals. Rhinestone application is the same. You need a heat press (again temps in the 350-400 degree F range) or a hand held application iron with a tip temp that reaches 300-400 degrees F.
Burn injuries happen all the time. Adults have to be very careful not to get burned. Children don't have the sense to not touch or stay away from something dangerous. As the mom, you are looking for something to do from home where you can be with him and work at the same time. If you wanted to pursue this any further you would be wise to get a sitter for him so that he doesn't get hurt in the process of you trying to make a living.
Burn injuries happen all the time. Adults have to be very careful not to get burned. Children don't have the sense to not touch or stay away from something dangerous. As the mom, you are looking for something to do from home where you can be with him and work at the same time. If you wanted to pursue this any further you would be wise to get a sitter for him so that he doesn't get hurt in the process of you trying to make a living.