I also have a few suggestions for reoccurring competitions:
The Egg competition (HoH), the Before or After competition (HoH, PoV), BB Comics (PoV), the Hide and Go Veto (PoV), the Spelling competition (PoV), and Ready, Set, Woah (HoH, PoV). You could also do the Zingbot PoV competitions as well.
Since you created one of these (The Zingbot one), can I just go ahead and create some of these as well? It would be pointless for me to suggest things and then you just create it. I could just do it and cut out the middle man.
I just think that with this level of generalization we can call more competitions this Spelling Search name while they have nothing to do with spelling. Like Big Brother Election in S15 or When Pigs Fly in S11. Or even something like finding bears in pillows in S10 and looking through garbage in first POV of S7 (yes they are different but basically it's also searching through some nasty stuff, collecting necessary pieces and being fast).
I was just rewatching BB12, and I notice they did the Caged Eggs competition, but with Christmas ornaments instead. Should we look for other times they've done that challenge with another object And add it to the page? It would also require changing the name too.