I'm modding on Snowflake for the first time and I have mad respect for those that did it in the days there was a new challenge every day! All the responding is a ton of work, even at every other day.
I can see the March, May, July, September idea having a shot (although Sunshine was in that mix)... OTOH you'll never not overlap with something else. Maybe make them stand alone but in a co-op, so you pimp each next challenge out. Let Sunshine stand for July and come up with something for March, May and September. So when Snowflake ends, there's a "join us in March for X" and pimp the next challenge on all the communities.
March can be a 'Spring Fling' and May can be a 'Patriotic Parade' and September can be 'Fall [something clever]' which gives you a theme that should be pan fandom.
Let them vary. Some can be 3-4 challenges in the month, some can have more...
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I can see the March, May, July, September idea having a shot (although Sunshine was in that mix)... OTOH you'll never not overlap with something else. Maybe make them stand alone but in a co-op, so you pimp each next challenge out. Let Sunshine stand for July and come up with something for March, May and September. So when Snowflake ends, there's a "join us in March for X" and pimp the next challenge on all the communities.
March can be a 'Spring Fling' and May can be a 'Patriotic Parade' and September can be 'Fall [something clever]' which gives you a theme that should be pan fandom.
Let them vary. Some can be 3-4 challenges in the month, some can have more...
My $0.02 worth!