When it comes to planning a dinosaur party; you can find everything you need for it (minus the venue) online on Etsy. Their custom and handmade invitations, party favors, decorations and supplies are incredible! My favorite part? You can support small-business owners purchasing through Etsy.
I think a cute THREE-Rex theme would be so cute for a three-nager.
For one of my son's birthday parties that was around brunch time; I ordered a dozen of junior break burritos available on the menu at the time from Sonic. By the way; they locations close to me serve a full menu all day long. Your closest locations just may also; I love getting their strawberry limeade drink.
Luckily having a dinosaur party can be easier than a lot of themes since you can find a lot of green and brown party decorations literally anywhere. I think a park would be a great place to host a dinosaur party.
Would you like making your pool a pool party? You can rent day passes to use pools at many hotels and resorts HERE. Other venue ideas: Edmond Historical Museum
In need of a photographer for the party? Try Shoott *use code AF3B88C4 for a special offer, PhotoSesh, Flytographer or try Bark