This is just a random picture from a photobucket search.
I remember seeing it on the museum though, looks like the guy used a plastic tub.
You would be ok with one of the round plastic plaster's tubs from b and q or whick's, i think the big one's cost around £8
I read OA is just wood bleach somewhere.
![](http://www.radbmx.co.uk/archive/albums/kk188/whiteirisbmx/108_1749.jpg)