Amazon has the the chemical guys foam gun for basically half off today. Thats a damn good deal. Get one now!
https://www.amazon.com/dp/B00F5MCL14/?tag=tcg21-20
*edit: you may have to use subscribe and save to get the deal, but you should be able to cancel that after it ships
https://www.amazon.com/dp/B00F5MCL14/?tag=tcg21-20
*edit: you may have to use subscribe and save to get the deal, but you should be able to cancel that after it ships