Cordless Screwdriver (Electric Screwdriver), Do you use one?

[J0K3RX]

^You could try putting the board in a zip-loc baggie with a little ferric chloride, put the electric toothbrush head inside and zip it up to the shaft of the toothbrush. Just work it around from the outside of the bag. This would also help conserve your ferric chloride.  I've done the baggie etch without the toothbrush and I only need a few tablespoons of ferric chloride. I'm going to have to try it with an electric toothbrush and a baggie next time.

John,

Yeah, good idea... maybe not even have to wear gloves then? Make it quick and painless as possible!

I got my eyes on Scooby Doo   I also like Spongebob 

http://www.walmart.com/ip/Brushpoint-Scooby-Doo-Battery-Powered-Toothbrush-2-count/21579036

[Jdansti]

^ You might get lucky without gloves, but I wear them because I somehow end up with a little FeCl3 on my hands. I just use the disposable latex gloves available at pharmacies.

Also, I forgot to mention that it helps to use a hot water bath. I fill a plastic container with hot tap water and immerse the baggie in it to speed up the process.