Hello,
First of all I apologize I do not use social media out of steemit. Also may be these won't count as Memes. Because of this I did not prepared a post nor social media share. But i had some visual ideas. And may be one of you want to use one of them in you social media marketing.
What i tried to say in these images?
Whatever you do it gains value on steem and steemit.
Image Sources:
https://www.theguardian.com/business/gallery/2015/jan/30/top-10-most-expensive-works-of-art-sold-at-uk-auctions-claude-monet-grand-canal
https://edition.cnn.com/style/article/banksy-tradition-of-destroying-art/index.html
I were prepared a GIF for Steem before. May be you will like it too.
https://steemit.com/art/@bidesign/let-s-get-artsy-with-crypto-cryptoart-contest-2
It was 
https://steemit.com/contest/@timcliff/art-graphic-design-contest-steem-the-gateway-to-cryptocurrency
I am not trying to enter your contest. But I thought may be they will be useful or give some more idea.
Thanks for interest.
RE: Let’s Make Some STEEM Marketing Memes!! - Social Media Campaign