frozen agate
Usually I brush on varnish on my miniatures but I just finished a larger dragon and I'm thinking a spray varnish would be better. Also I'm lazy and don't want to spend that much time brushing it on. Other than Tamiya are there other brands that are appropriate for miniatures? Special Krylon, since it's available at walmart.
twin zodiac
This is what i use for varnishing (ignore the primer)
vital cave
I use Vallejo. Works fine but probably overpriced compared to hardware store stuff.
frigid hearth
@frozen agate krylon flat varnish works perfectly. I usually use that or "testors dull coat".