Here's a little known fact (i think i discovered it), the fastest place to get swamp tar is the pirate ship from Lunar Diplomacy. Just go down 1 floor and there are 3 tar barrels right near eachother, they respawn faster than the in lumby swamp, and there is multiple tars per barrel. I tried all 3 methods for collecting tar (spawns in swamps, cave slime killing, Lunar diplomacy ship), and this one is BY FAR the fastest, other than buying. Granted, i havent found a use for tar with a red sally, but it is a good way for me to make money \ . All i see is apples :-k