What you do is scribble felt tip pens onto an acrylic block, spray it with water and then stamp it onto card, it gives you a nice background to stamp on.
I used very old cheap felt tips that I have from when the kids went to school. These are some of the cards that I made.
Stamps, Dina Wakley.
Stamps, Hampton Art for the dragonfly and Hobby Art for the sentiment.
Stamps, Penny Black for the iris and Stampotique for the sentiment.
Stamps, Personal Impressions for the daffodil and Stampotique for the sentiment.