I have a few brand new battery boxes left over from the Ford days. These are nice boxes made to fit the odyssy battery. They are light weight, formed and welded by an unemployed skeet shooter / race driver who needed welding practice (although he did a very good job on these).

I hate to throw them in the scrap bin but I'm, tired of looking at them. $20 each and I have probably 10 of 'em.