I've had garlic scapes in my fridge for weeks now and I've been meaning to do something with them but time got away from me and the tips just started to wilt, so I blitzed them into scape pesto -- which I plan to use in all sort of things over the next few weeks.
Blend together: 15 garlic scapes, trimmed; 4 tablespoons olive oil; zest and juice of one lemon; salt to taste
Makes a lot of garlic scape pesto that will keep in the fridge for a few weeks.