It’s a tradition for Hamvention® … it must rain for at least part of at least one day … and this year didn’t disappoint! Showers and even the occasional downpour popped up on and off Saturday, prompting flea market shoppers to periodically flee inside to dry out. Then a thunderstorm in the early hours of Sunday morning left the flea market a bit muddy. But spirts ran high for the closing day of…