Abbott makes the BinaxNow kit. You can get it at Wal-Mart - $20 for 2 tests.
There is a DIY home 'Rona test kit easy to make and use:
Two liter, clean plastic soft drink bottle
Add exactly 16 grams stool sample of the person to be tested
Add exactly 0.10 liters of distilled water
Add two table spoons of powdered sugar
Secure a 0.33 cubic liter capacity balloon to the top of the plastic bottle, sealed by Surgical Tape
Leave said bottle, contents and attached balloon 8 on a flat surface with a consistent air temperature of 20.5c to 23 Celsius.