Mechanical Paint shaker
Asked and answered:
http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=27162
If that link won\'t work for you, just go to www.micromark.com and put \"paint shaker\" into the keyword search.
I have had one for about 6 months now and I don\'t know how I got along without it. I use a lot of different paint colors on my models, and shaking as many as 8 different paint bottles just to get the blend effect I am after gets rather tiresome. Also I paint in spurts meaning I\'ll sit for 2 hours then go off to do something else. The next day I\'ll start again. At the table, its no problem to quickly shake up a bottle you\'ve already been using, but trying to adequately mix up a color you haven\'t used in a week or so can really burn out the arms quick. Maybe I\'m just weak/lazy.
Anyhow, the shaker was worth the cash for me. Get the plug-in one, not the battery one, the batteries die too quickly and it uses 4 D cells which ain\'t that cheap to replace often.
Also storing vallejos like wine bottles helps quite a bit (on their side, or slightly elevated). Certain Vallejo colors that have been sitting upright for a month or more, unused, can be a pain to mix up adequately.
Hope that helps.
--number9