Before
After a few minutes with a red sharpie - literally that is all I used for this.
I did clean up the surface I was writing on with some nail polish remover so that the sharpie had something to hold on to.
I don't even know why I picked hearts, but it is rather fitting for this time of year I guess. Now that I think of it I'm might have to gore it up a bit.
After
{easy}