Tulips droop. You bring them home, nice and straight, and before you know it, they're slumping over the sides of the vase. Has its own charm, definitely, I like a little droop sometimes. But, often, I like them pointing straight up.
This is how you get them to do it -- give them almost no water. Really, the smallest amount, just grazing the bottoms of their stems (my photo above is even still a hair too much!). They will ever after reach for the ceiling.
If you have tulips that are already drooping, you can also re-engage them by emptying out the water overage and giving them barely any. They'll straighten back up again.
Pretty amazing, huh?
(Thanks for the tip years ago, Robert!)