Heidi Klum loves Halloween. For years she has managed to surprise and thrill fans with her incredibly creative costumes, and from the photos and video clips she has shared via Instagram, it looks like this year won’t disappoint.

Sporting what appears to be a body cast, Heidi Klum is seen covered in some sort of plaster–from head to her knees–in a series of shots that have fans wondering exactly what the end result will be.

“It’s almost time for my favorite holiday! Costume prep time with the team at @prorenfx Can’t wait for Halloween! ?” the Project Runway host captioned this first photo.

A photo posted by Heidi Klum (@heidiklum) on Oct 2, 2015 at 11:18am PDT

Heidi Klum is blue, but definitely not sad, in this next shot.

“So yucky but so worth it in the end ? #heidihalloween #heidiklumhalloween,” she captioned it.

A photo posted by Heidi Klum (@heidiklum) on Oct 2, 2015 at 1:09pm PDT

“Thanks @prorenfx team for making my crazy costume idea a reality ? #heidihalloween #heidiklumhalloween,” Heidi Klum captions this short video clip.

A video posted by Heidi Klum (@heidiklum) on Oct 2, 2015 at 1:20pm PDT

This next clip might be considered a bit revealing by those who prefer to see Heidi Klum a bit more covered up. Fans will love it, however, as they know she is a huge fan of creative Halloween costumes.

“Slime me up @prorenfx ? #heidihalloween #heidiklumhalloween,” she writes.

A video posted by Heidi Klum (@heidiklum) on Oct 2, 2015 at 1:46pm PDT

Do you think you know what or whom Heidi Klum plans to be for Halloween? While her behind-the-scenes photos and video clips are exciting, they’re also rather mysterious, and they don’t seem to give her costume plans away.

Would you dare to wager a guess on the end result?