Halloween Flapjacks?

[imsorryiasked]

I need to make something for the school Halloween party. The only ingredients I have enough of will make flapjacks, but I can't think of how I can theme them to be spooky etc.
Any suggestions gratefully received!

goodfood.uktv.co.uk/recipe/halloween-ghost-flapjacks/

au.pinterest.com/pin/163185186474850612/

First one needs marshmallows and second one an icing pen...you know those packs you can get in Tesco? Writing icing...they'll do it.

Brilliant! Thank you