if you dont mind setting up and tearing down yourself and finding a caterer then check out delta township community center.
also another less expensive place is Royal Scott (yes the bowling alley, they have nice reception halls). they do the catering and setting up and tearing down, but not nearly as expensive as say the Kellogg Center.
other places would be the potter park zoo, Turner Dodge house or any local park.
it all depends on your budget and how formal you want to be.
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