A card board tube
Paint and crayons
Shape one end of the tube as below, to form a heart:Dip the heart end of the tube in black paint or indian ink (Indian ink can be a bit messy and is not washable so protective clothing is necessary)
Stamp hearts all over your card.
Chose one heart and colour it in red with a wax crayon to make it stand out:
Here is your greeting card ready to write and send!