Walking home yesterday

Five things presumably left/lost in the snow which are now (that the snow has melted) visible:

• chapstick
• tube sock
• yellow pencil
• cracked cafeteria tray adorned with the letter "J" in duct tape
• spork

Also, walking past a maple tree, I noticed a squirrel's bushy ass hanging out of a hollow spot, about eye level, and wondered (idly) whether anyone had ever hidden anything inside the tree. It's on campus, beside a fairly well-traveled path. Surely I'm not the only one to ever consider this.

Would the squirrels allow foreign objects? Would any non-food item be rejected as taking up critical space reserved for sustenance? Do squirrels really store nuts and acorns in tree hollows, or simply line them with nesting material? What might I hide in a tree, knowing I could probably not retrieve it?

• pennies (version of a "wishing well")
• anonymous confession of a crime I've considered but never enacted
• poem drafts: the tree would slowly digest them and offer revisions in March
• a spare cell phone: I could hide uphill at night and dial it as people walked past & drive them batty as they attempted to find it