Envelope Explorers

Envelope Explorers sends children a hand-packed envelope addressed to them, with a letter written from a new destination each month. Inside are a themed map, pictures and postcards from the place, fun facts, a small sticker or temporary tattoo, and a keepsake fridge magnet showing the child's own face dropped into the scene, built from a photo parents upload once. Upcoming stops include Salem in October, Lancaster County in November and North Pole, Alaska in December.

It costs $10 a month with shipping included, or less per month on 6 and 12 month prepaid plans. Order by the 20th for the next month; envelopes go out around the 1st, to US addresses only.

Aimed at preschool and elementary kids.