Wedding Wednesday: We need a hashtag

Sean and I met on Twitter, so clearly we're into social media.

We plan to have a custom Snapchat filter for our wedding day (supposedly this is easy to do, but I haven't put a lot of work into it yet). We'd also like to have a hashtag for Instagram, Twitter, and anywhere else we might be able to search and find photos from and of our guests.

We've talked about the hashtag quite a bit. Our friends and one of his brothers have offered suggestions, but we don't love any of them yet.

Our wedding date is 6-9, which could be trouble in some ways.
Our first initials are S and M. Again, not the greatest combination.
He has a longish last name that can be hard to spell. 
We'd like it to have something to do with baseball (since that's our theme), but it's not required.

Can you help, blog world?

If we end up choosing a hashtag suggested by one of you, I'll make sure there's some kind of prize or reward in it for you.

Thanks in advance!