I'll join the voluntary share-your-R1-block-reward-with-other-R1ers, I do not know how much I would be willing to share, maybe like 1 coin per participant or something (up to 10 coins), but if I hit a block with the R1 I'll worry about it then.
A weekly contest that we buy into for high share would be fun, but we would need 1 trusted member to hold the fees and payout. I would probably do that for something small like 0.01 a week per person, voluntary as well. We would need a way to track the weekly shares, though, no sure how that would work. Instead it could be "highest share per solo pool block" since best share reported there resets after each block (not best ever share, just best share).
And WOW on the 13G best share, that's the highest I've ever seen for so little hash power. In fact it is better than my S5 has done in the couple months I have owned it.
I'm the last and have to swallow the dust from all others 
Congrats! That will be very hard for us to beat... 
