Primula. Single Serve Coffee Brew Buddy – Nearly Universal Fit – Ideal for Travel, Reusable Fine Mesh Filter, Red Price: $6.47 (as of 05/06/2018 19:26 PST- Details)

Brews a single cup of coffee to any desired strength, in as little as 30 seconds
Economical, reusable fine mesh filter can accommodate your favorite coffee grind
Fits most cups and mugs, and fully portable so you can take it with you anywhere. Perfect for camping