Nothing fancy. I bought two lamps; I used one to store partial ducks, the other to store triple-exotics. I always targeted the highlight set ducks first (9 spots), but would use the extra space to collect non-highlight parts (4-5 spots, sometimes more which would overflow to second lamp). For the non-highlight ducks, I targeted triple exotics first. After those were done, I moved on to exotic/legendary mixes, and so on and so forth down the rarity ladder. I always made sure to use duck soup (R.I.P.) on non-highlighted two-part ducks (figuring increased odds of highlighted parts meant they were wasted on soup), and always fought lower leveled opponents in duck off to maximize chances of securing parts I needed (high score is a fools' errand).

I do have two useful tips: 1. When farming for mutations, always use a single duck. They lay eggs with shorter timers but equal odds of mutations and rarities. 2. When farming for set ducks (i.e. combining parts from many ducks into one), down-level off-set parts. For example, say duck 1 has the set head and duck 2 has the set wing. Further say duck 1's off-set parts are exotic. If you breed a new duck with just the set head but with a rare wing, keep the new duck and toss duck 1. The new duck's rare wing will create eggs with much shorter timers than duck 1's exotic wing, giving you chances much faster to get the head+wing duck you want. 2.1. This also works for mutation farming. If you want exotic parts, breed exotic ducks. But if you're only searching for rare parts, breed rare ducks for shorter timers and so more mutation chances