Chore Charts... {FAIL}

I saw THIS super cute chore chart...

...but I didn't want to go out and buy supplies, so I had this idea in my head that was brilliant. Over the top genius! I had a smile on my face for days as I contemplated my next move:

I gathered my supplies:

My cheap nonstick cookie sheets, (because the light colored cookie sheets aren't magnetic, but the dark pans are), Paper, magnets, clear rocks, appliques etc...

I turned over the cookie sheet to measure and cut my paper to the appropriate size...

I mod-podged on my layers. Fast and easy so far, and at this point I was still smiling.

Super cute and spunky right?

A baseball one for my son, and a Paris one for my daughter. All I need is a few more appliques and some vinyl lettering and add the magnets.

Well, this is where i took a big step back. A large step.

It.Peeled.Right.Off.

Leaving me nothing but a stiff piece of paper and a new expression on my face...

(And pans that finally decided to be non-stick...how convenient).

So...

Mod Podge,

~FAIL~

Glue gun,

~FAIL~

Scotch sticky squares,

~FAIL~

Everything peeled right off like I was sticking it to a greased monkey.

I'm desperate. I wanted to keep this cheap with no expense, but it's looking like if I want to finish this project, I'm going to have to buy wood and sheets of metal.

For now, powerful mini magnets are holding it on...But I was really hoping for this project to become 'one.'

Any suggestions or words of comfort? :(