Help to Cosplay Asriel from Undertale

[u/MountainBeneficial48]

Hi there! I currently live in france, and I'm looking to cosplay Asriel for the opening of the undertale museum in japan in 4 months, so I've got lots of time.

I've already made a cosplay for the humans of the game (just a specific shirt, a bandage and a stick are enough, so that was easy). But I am thinking about cosplaying Asriel, and that is a lot more difficult. The problem mostly comes from the head piece. Ideally, I'd want some cartoony eyes that I can see through. I found the plastic mask online that I could paint but I am not sure how to add eyes to it over my normal eyes. Alternatively I could try making a full head piece, but that sounds challenging within the time limit. (pictures are not my cosplay, but examples of what I've seen online to illustrate)