There's only one real, heavy-duty plaster/mortar mixer worth taking home and it's from Multiquip.
Heavy-duty long lasting cast bull gear with steel heat-treated drive pinion Rugged 10-gauge steel drum wrap Reliable Honda GX240 gasoline engine Double V-belt drive with cast iron pulleys Mixes up to 7-cubic feet (193 liters) of material Heavy-duty frame with forklift pocket Powder coat paint for durable lasting finish