I bought one of these and it's perfect (despite the appearance of the box in the picture.)
http://www.ebay.com/itm/Wells-Gardn...ltDomain_0&hash=item19c86fa8b3#ht_1865wt_1397
http://www.ebay.com/itm/Wells-Gardn...ltDomain_0&hash=item19c86fa8b3#ht_1865wt_1397


