One sunday in Hawaii we walked on the golf course and we got a wake and wrote on the sand messages for my dad because he had to fly back to washington for work that week, so we took a pic of them and emailed them to my dad. we had to do the messages in the dark so no one would catch us on the golf course. that why they dont show up that bright. LOL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!