I initially had wanted to incorporate this funprint skull and cross bones on the front, but couldn't make it fit and look right. I then just decided to add it onto the back. To achieve this funprint, you will need one horizontal thumbprint on top of a vertical thumbprint. For the crossbones, I used my entire pinky finger and then dotted them on the ends with index fingertip prints. I them embellished them with a black marker.
here. Personal-use only please.
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