I used a coffee can also... But only the top is open. I took a churchkey to the bottom (sides) to cut little triangular holes for air. No coat hanger - I use charcoal tongs to move it.
Source: pool-71-184-4-11.bstnma.east.verizon.net 71.184.4.11 Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; WOW64; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.04506; Media Center PC 5.0; .NET CLR 1.1.4322)