Well, we're off to a slow start with Mocktail Month. Like my stretches of hiatus, there has been plenty of effort but nothing I quite dig enough to share.
2 oz cryo-cucumber juice
3/4 oz blackberry shrub
1/2 oz gin & tonic syrup
2 dashes Bitter Truth Celery Bitters
2 dashes Bitter Truth Tonic Bitters
Shake like a madman and strain over fresh ice in a short glass. Top with a (short) splash of soda and stir.
This one would have worked very well with a bit of ginger beer instead of soda, maybe with a little extra acid for balance. But it was pretty damn satisfying as-is.