Scapular Pull-Ups - slow and gentle movement through the shoulder girdle. Great for warm-ups and/or general stability
Supine Single Arm KB Shoulder Rotations - activation, pre-hab, rehab and general shoulder bolstering! Slow and controlled.
Strict Toes to Bar - Obviously good for "core", but another sneaky one for working on grip strength! Modify with hanging knee raises, or make harder with a DB between the feet!
Dual KB Overhead Kneeling to Standing. Keep tight and don't wobble! All the muscles involved in this one!
Kettlebell Turkish Get-Up - try this out and keep a keen eye on your alignment. Similar to how bad alignment negatively impacts drag in the pool, bad alignment in this one will impact your balance!