Playing with highlighter pens

I've finally got round to having a play with highlighter pens as featured by Paula Whittaker in Craft Stamper last month and also on her own blog here. I used an orange highlighter, walnut stain distress ink and Inkylicious stamps on the first.

The second was done with a yellow highlighter, walnut stain distress ink and stamps from Hero Arts and Chocolate Baroque. I sprayed the second with a water mist to get the speckled effect. I will definitely be doing some more of these. Now what did I do with the blue and pink highlighters?!
Thanks, Paula, for sharing such a fab idea with us.
Thanks for looking!