Plans, interactive quizzes/games, and worksheets:
Puzzle Maker - Discovery Education
rubric maker: Rubistar
rubrics and tons of other stuff - Schrock Guide
Some lessons, also pre-made worksheets - Music Alive
Make your own name-naming worksheet - http://secondrunnerup.com/mmm2/
Fingering Chart Maker - https://fingering.bretpimentel.com/#!/clarinet/
Note image generator - https://notes.bretpimentel.com/