With orders of $25 or more, Amazon offers
The Board Dudes 16" X 20" Aluminum Framed Magnetic Dry-Erase Calendar for
$5.49 with
free shipping for Prime members. That's the lowest price we could find by $3. It includes a black dry erase marker and two magnets.
Note: This item is part of Amazon's "Add-on program" and can only be purchased with an order of $25 or more.