It's only water so i'm assuming it's safe for pretty much anything.
What Takes Wax Off Walls. Remove wax marks on a wall. It takes less than 5 minutes if you have matching paint.
Wax On Wax Off Ball Exercise from www.exercise-ball-exercises.com
If you paint one wall in a close match, it will look like an exact match. Not sure how safe that is though. If you don't have matching paint, find a close match and paint the whole wall.
Hold it over the wax.
I think,the purpose of wax on, wax off would be not to to teach him the value of hard work, but to teach him the basic karate movement and make him understand mastery in karate is. Using a blunt knife, scrape off as much excess wax as possible. Untreated wood may stain with any coloring used in the candles, so take care with candle wax in any area that has untreated or unprotected surfaces. It only takes a minute to sign up.