https://www.lowes.com/events/register/kinetic-sandbox? –   RSVP for a Free Kinetic Sandbox Workshop for kids   on June 15 in store at Lowes stores.

Also, if your child completes 12 workshops they can get a free tool bag:
“Attend 12 qualifying Kids Workshops and your mini-DIYer will become a Sr. Builder! For each workshop you attend, you’ll receive a limited workshop badge. Present your 12 qualifying badges to a Red Vest associate during your next registered Workshop, and they’ll present your mini-DIYer with a special-edition Sr. Builder Badge to apply to their apron, as well as a code to redeem for their free tool bag online.”

https://www.slumberland.com/giveaway.html -June 14-16 you can get a Free $25 Mastercard when you try any recliner at Slumberland stores. There’s a list of stores that aren’t participating at the bottom of that image.

https://www.instagram.com/p/C72O4zrS6xN/?hl=en -get a Free 16 oz. or 24 oz. Drink on June 7th from 10:00 am-8:00 at Fiiz Drinks. It sounds like its only at their Utah locations.

https://www.lakeshorelearning.com/stores/events/ -on Saturday, June 8 from 11AM to 3PM Lakeshore Learning stores will have a Free Summer Fun Factory Event. “Who’s ready for summer? Come in stores and kick off break with cool crafts and hands-on activities featuring products that beat boredom and inspire learning! Kids can take a bubble-painting lesson, create a bouncy ball and put it to the test, design a sparkly squish bag and lots more! It’s free, it’ll be so much fun, and there are no reservations needed.”

https://www.qsrmagazine.com/news/dunn-brothers-coffee-introduces-free-sips/ -“Free Sips will be available to give new customers and longstanding Dunn Brothers Coffee loyalists a free way to savor the unparalleled quality of the brand’s hot, and award-winning cold brew selections. Available at participating locations, customers can enjoy a free 2-ounce sip of any available, currently brewed coffee or Nitro Infinite Black cold brew, simply by requesting a Free Sip at the counter.” -they have locations in IA,MN,MO,SD, TX and WI

http://kidsskatefree.com/index.php -many locations across the country have free roller skating for kids with this program. Typically you will still have to pay to rent skates though.
–Update– There is a change this year where you have to buy a $4.99 Annual membership.  Each annual membership allows one child up to 2 skating sessions per week at a participating rink.

https://www.planetfitness.com/summerpass -teens can work out for free all summer at Planet Fitness starting on May 13. “High School Summer Pass is just for teens 14 – 19. Under 18? Sign up with a parent/guardian (online or in-club). –Update– registration is now open.

https://freecomicbookday.com/StoreLocator?fb -enter your zip code to find a store near you that is participating in free comic book day on Saturday, May 4. They have a list of some of the comics that are free   here.

http://www.kidsbowlfree.com/ -get free bowling this summer for your children.  Each child can get coupons for 2 free games of bowling daily. Find your location and if its open you can register. If they haven’t opened signups yet you can enter your email to be notified when registration is open.