There are some pretty neat buckets currently on eBay (except they're $38 per 100, a little more than one would usually need). They're also too large, at a couple of inches tall, but they might do for 1/6th. There are also quite a lot of bucket charms around, for a few bucks, if you avoid the opal and diamond studded ones. Some aren't too bad, although most are in need of weathering.