I teach physical education and got a disc golf course set up donated to our playground with pro innova baskets/cement tees etc. The EDGE program "educational disc golf experience" recommends 150 gram Leopards, Sharks and Aviars for kids in dx plastic. They work well through Middle School or for anyone learning the game. The Edge Curriculum is great too :)
One of the favorites for the youngsters here in Clearwater is the Ultralight Raging Inferno DT made with Nike plastic.
My personal pick is always a 150 Stingray. One of the first discs I ever threw and still manipulate perfectly around the Disc Golf Course...learn on the light ones and move into the heavier later. A nice partner to the Stingray is the 150 gram Cobra which has a bead on the bottom for a touch more stability. We have the largest selection of Lightweight discs on the planet and make Custom Starter sets every day for new players of all ages. ClearwaterDiscGolfStore.com
Thanks Jamie. Pretty sure we have the largest selection of lightweight discs on the planet. We were stocking them while people were mocking them. Now they are the rage for Newbies and Seasoned Veterans.
We even have a separate section for 130 Gram Discs that are below 130 grams.
I have an ultralight polecat and it has fantastic glide. It's also great as a catch disc for kids...which is probably a great way to teach a kid to throw.
I honestly don't think a kid of 5 needs more than a putter. I've found in teaching a group of newbies (an 11 year old and 3 middle aged adults) that they had the best success with a flippy putter. Drivers (even the light ones I gave them) didn't travel any further for them than the putter and were much more erratic.
If you want to get them some other light discs to grow into, I understand. I was seriously tempted to buy my 4 year old girl that pink bag and set of 20 light golf discs that someone was selling here....and to register her in the women's division at worlds this year. :-) Let the game come to them at a pace that doesn't frustrate or alienate them from the game... or you.
Expanding on that thought Discraft makes a Challenger Light typically retails for about $5 and is about 130, gateway makes some ultralight putters and availability is kind of hit or miss, but someone might stock them.
Innova has the Polecat and several others in ultralight, including Rocs and the Ace driver. Those you can find at walmart usually even in the ultralight weights.