You are looking for a nano which holds the log. There's no pen so bring your own.
The Toxic Pens have been brightening up logs one cache at a time with their luminous script.
Known for their colourful stationary and vibrant pens and now branching out to caches. Colourful caching- why be dull when you can be Toxic.
The a Toxic Pens is the patented team name of Spingo88, Muffins on the Move, Marthymuffin and occasional honoured guests.