Champion League - Loot Bonus Farming (UPDATED 13 Dec 2015)
WARNING: This method is obsolete and is no longer valid.
This method might become obsolete in the next update, so take advantage of it while you still can!
This method still works perfect for Town Hall 9 and below. However, for some reason the amount of snipes almost gets down to none after you pass the 3200 threshold. So, even though the new matchmaking algorithm has been modified to include the champion league (and higher), you would still need to snipe below 3200:
Step 1: Pass the 3200 cups milestone to reach champion league.
Step 2: Look for a base with DE on the corner (there are quite common, in fact), take the DE then surrender to drop trophies.
Step 3: Snipe THs without paying attention to your current trophy count, using only your Hero and/or Archers if necessary.
Step 4: Once you pass 3200 cups, got back to Step 2.
Step 5: Repeat if necessary.
NOTE 1: Do not attempt to drop trophies by losing a defense, the snipes are extremely common below 3200 for a TH9 that you could get back above 3200 from 3150 in less than an hour.
NOTE 2: An average TH sniping session (getting 3200+ from ~3100) takes about 1 to 2 hours.
NOTE 3: Your resources will probably be maxed out before hitting the cups threshold.
This method is extremely effective for farming DE as each snipe nets you 1200 DE alone. If you farm TH snipes below 3200, you will always gain MORE gold than you lose by nexting (as a TH9).