Doesn't it seem a little bit similar to February's challenge? (
https://www.pizzamaking.com/forum/index.php?topic=60723.20;topicseen) (pizza you don't often make has a good chance to be a pizza you don't like

)
BTW here are some other ideas:
- make a pizza out of ingredients that aren't meant to be on a pizza/a part of the pizza
- in the same taste: make something that looks like a pizza but isn't a pizza
- make a pizza using only [insert number] ingredients (for dough, or for topping...)
- make a pizza using only [insert ingredient(s)] as a topping
- if pizza didn't exist, what would you do instead?
- [insert kind of pizza] challenge
- make the best pizza out of the worst quality/cheapest ingredients
...