Don’t discount the value of a bucket as a signup bonus!
Along with some pvc pipe, gravel, sand and charcoal you could use a bucket to build a water filter. You can grow food inside of a bucket. Or harvest rainwater. You could even attach a couple of straps to the bucket and make it a backpack. With holes near the bottom of the bucket, and placed inside roasting pans, you might be able to use it to feed chickens. Buckets are also super useful if the ALS Foundation gets the ice bucket challenge to go viral again.