The 24th Annual Thingamajig Invention Convention is coming!

Thursday, July 26th, 2018 from 9am-3pm! 


The YMCA Thingamajig Invention Convention inspires children to utilize their creativity and strategic thinking skills and ask “What If…” 

Children participating in Thingamajig have numerous opportunities to learn, play and be inspired through STEM. Join kids from our community for a day filled with hands-on exhibits, challenges, and workshops. Open up the world of endless possibilities. 

Location: The Show Place Arena 
Prince George’s Equestrian Center 
14900 Pennsylvania Avenue 
Upper Marlboro, MD 

Click here to view photos of last year’s Thingamajig Invention Convention! 


  • Registration forms will need to be completed for each child that will be attending this event with your camp, organization, or staff.
  • All inventions are to be submitted Wednesday, July 26th, 2017 between 9a-2p at Prince George’s County Show Place Arena in Upper Marlboro, Maryland.

If your organization would like to volunteer, please contact Genette Comfort. 

Genette Comfort 
Vice President of Philanthropy