Pour two cups of hydrogen peroxide, four tablespoons of white vinegar, and one-and-a-half teaspoons of table salt into a plastic spray bottle. Vigorously swirl the bottle to mix the contents. Once the salt has dissolved, spray the solution over the object to coat it partially or completely, depending on the desired effect. The peroxide should begin to bubble on contact with the metal, and rust will start forming immediately. Let the object air-dry in the sun for another five minutes or longer, depending on the size of the object.

Thanks, Bob Villa. If you have time to prepare the surface, a volatile degreaser like acetone will remove any oils that might protect the metal and evaporate pretty quickly.

HTH (pool chemical) is also a strong oxidizer. I’m not sure how to best use it, though

[–] polpotkin@hexbear.net 16 points 2 weeks ago

If you add plant food then you can get more colors in the patina

[–] aberrate_junior_beatnik@midwest.social 13 points 2 weeks ago

You could also have some fun with a stencil

[–] Comrade_Mushroom@hexbear.net 12 points 2 weeks ago

Immediately? I dunno. I might want the process to be a little slower. I like to be able to wander off and do other things, and you know, come back to appreciate the results later.

[–] Awoo@hexbear.net 9 points 2 weeks ago (2 children)

Will that safely mix with a water balloon?

[–] sexywheat@hexbear.net 10 points 2 weeks ago

Only one way to find out!

[–] Sulv@hexbear.net 9 points 2 weeks ago

I wouldn't recommend breathing the fumes