Are you looking for some adorable Mike and Sully costume DIY ideas?
Mike and Sully Costume DIY
Today’s the big day! Monsters University Blu-ray & DVD 
More Monsters Inc Costume Ideas
Before I share my Mike and Sulley costume tutorials, I wanted show you a few easy alternatives you can find on Etsy and Amazon, in case you aren’t in the DIY mood. Or if you want to go with friends in a Monsters Inc theme, here are a few more Monsters Inc costume ideas.
- Adorable Boo Costume
- Celia Wig Headband
- Celia Monsters Inc Dress
- Monsters Inc Inspired Masks
- Toddler Sulley Costume
- Mike Costume T-shirt
- Sullivan Tween Costume
Easy Mike Wazowski Costume
Mike Wazowski Costume Materials
- Bright green t-shirt
- White, green, black, light blue felt
- Blue baseball cap
Monsters Inc Mike Costume Tutorial
Starting with the t-shirt, I created one huge Mike Wazowski eye using white, green and black felt. I attempted to use some fabric glue but had better luck with my hot glue gun!
Try to off center the eye slightly, if everything is perfectly centered, the eye looks a little odd. Keeping it simple, I skipped his teeth and made a simple smile using black felt.
DIY Monsters Inc Hat
Mike’s hat is my favorite part of the Monsters University costumes, it was so easy and turned out awesome. I started with a plain blue baseball cap I found at the Dollar Tree. I printed a Monster University logo I found online (using a quick google search) and used it as a template.
I used light blue, white and black felt to create the logo for the hat. I don’t trace my templates onto the felt. I like to use double-sided tape to attach the template to the felt and then cut around it. Then I don’t have to worry about pencil marks and it’s easy to peel the template off of the felt.
Glue the MU logo together and then glue it on the front of the cap.
Mike and Sully Costume Hat
The best part of the hat is the horns. Quinn inspired me to put the horns on the hat. He knew Sulley was getting horns and reminded me that Mike also has monster horns. I realized I could make a small pair of horns with leftover white felt – similar to Sulley’s. Then I stitched them to the side of the hat.
Easy Sulley DIY Costume
Sulley Costume Materials
- Blue t-shirt
- Blue knit cap (I had to use purple)
- Blue, purple, and white felt
- Stuffing material
I think a blue hoodie would make a great Sulley costume base but I already had the blue t-shirt. My plan was to find a matching blue knit hat.
Unfortunately, I had no luck but did run across a purple hat that matched Sulley’s spots, so I ran with it. The costume isn’t perfect but it’s cute and the colors coordinated well.
Sulley Costume Hat DIY
I cut spots out of purple felt and glued them on to Sulley’s shirt. I played with the placement a little bit before attaching them, I wanted different sizes placed randomly on his “fur”.
Again a blue hoodie would be ideal for Sulley, I settled on a knit hat to keep the costume super frugal. I found this purple knit hat at the dollar store and it worked fine. I had a 2nd blue shirt and used that material to make the spots for the hat. It helped coordinate the colors perfectly.
The horns themselves were easy to make using white felt. This tutorial has a great template to use, I played around a little with the size to get the right size horns. Then I cut the horns out of white felt, sewed them together and added a tiny bit of stuffing.
Originally I thought about attaching them to a headband but I couldn’t imagine Elliot wearing a headband without complaining. Alternatively, you could just find a pair of costume devil horns and spray paint them white to wear.
This was so clever! And so simple, too! I am planning to link back to your site for an upcoming blog post on easy Disney costumes for kids. This was just fantastic!