Zucchini pickles are every bit as delicious as their cucumber counterparts.
Give this sweet-spicy version a go.
Combine 4 cups 1/8-inch zucchini slices, 1 cup slivered sweet onion, and 3 thinly sliced garlic cloves in a glass bowl. Bring 1 cup white vinegar, 1/2 cup sugar, 3/4 teaspoon crushed red pepper, 1 teaspoon mustard seeds, and 3/4 teaspoon kosher salt to a boil; pour over zucchini mixture. Cover and chill 24 hours.
From Cooking Light