So I can get a great deal on some valks that have some yellowing on the plastic from sun exposure. After doing some research on other toy forums it seems that 6% Hydrogen Peroxide is the weapon of choice. The process involves filling a jar with the H2O2, submerging the toy and leaving it in direct sunlight for a few days. From what I've seen the results were amazing. I primarily concerned with the effects on the tampo paint. What are your thoughts on this?