Update June meetup location and announcement, and set June challenge to Show & Tell Extravaganza

challenges.md

@@ -9,15 +9,15 @@ Welcome to our monthly 3D printing challenges! Each month features a unique them
 
 ## Active Challenge
 
-### June 2026: "[Theme TBD]"
+### June 2026: "Show & Tell Extravaganza!"
 
-**Theme**: [TBD]
+**Theme**: Show & Tell
 
 **Key Details**:
 
-- **Model**: [TBD]
-- **Goal**: [TBD]
-- **Voting**: Group vote for favorite attempt
+- **Model**: Any 3D printed project
+- **Goal**: Share your work with the community
+- **Reward**: Participants enter a drawing for one of 5 free spools of filament!
 
 **[View Full Challenge Details](https://meetup.fargo3d.com/Fargo3d/3DPrintMeetup/wiki/Current-Challenge)**
 
@@ -43,7 +43,7 @@ Welcome to our monthly 3D printing challenges! Each month features a unique them
 |-------|---------------|-------|--------|
 | April | "Bring an Experiment" | Try something new | **Archived** |
 | May | "Bring an Experiment (Round 2!)" | Try something new, crazy, or wild | **Archived** |
-| June | [TBD] | [TBD] | **Active** |
+| June | "Show & Tell Extravaganza!" | Community Showcase | **Active** |
 | July | [TBD] | [TBD] | Planning |
 
 ### 2025 Challenges