Pumpkin lattes.......they are all the rage during this harvest season.
I have family members that are crazy about them. 

Here's a YouTube video to show the entire process to make pumpkin latte cookies.

Using a cookie cutter with a mug shape that includes whipped cream piled on top (see links below), it's fairly easy to decorate a cookie up for the pumpkin latte season.

The video shares all the details.....first the mug body, then the handle, then the layers of "whipped cream" with a sprinkle of actual cinnamon on top. :)
And be sure to include either a cute pumpkin cookie on the front of the mug, or cut a mini pumpkin shape into partially dried glaze and then decorate the shape with piped glaze.

Here's some potential mug cutters to use:
Hot Cocoa Mug #1 by BobbisCookiesCutters
Hot Cocoa Mug #2 by BobbisCookiesCutters
Hot Cocoa Mug #3 by BobbisCookiesCutters
Tall Mug by TheCookieBoxCCS
Short Mug by TheCookieBoxCCS