One great way to guide you in planning those junior level activities is to work on the Adventure Sports badge.
The retired Puzzler badge is a great one to earn for your Junior troop. It is relatively inexpensive to prep for and can be structured to allow the girls to work pretty independently.
Here’s a complete list of retired junior badges, so you can decide which ones are appropriate to reintroduce into your troop, if you can find them.
Learn about the retired Brownie Try-It badges for brownie girl scouts. You can still earn these badges today. Some guides are available here.
This is a fun badge that my Brownies have always enjoyed. As a leader, I appreciate the fact that it doesn’t require a lot of advance prep work. Given that this is a shadow-based badge it may work better to do this during the winter months especially if you live in the south like I do.