To-do: Doodle on a Starbucks Tumblr!

Photo by @deveerei
I recently bought a Starbucks "Create Your Own" Tumbler. It's a double-walled tumbler that has a screw-cap bottom you can remove to insert a paper in between the transparent walls. Enabling you to customize it by inserting photos or drawings of your preference.
Here's what the tumblr looks like:

Photo by @deveerei
This is a preview of my next work, I've decided to draw on the paper insert that Starbucks has to customize this tumbler to my liking: I can easily remove the cover and slide the paper out.

Photo by @deveerei
I lay i flat with weights on 2 corners so that I can start drawing on it. I'm thinking either Gundam-themed or maybe Adventure Time doodles. What do you think?

Photo by @deveerei
Want to customize your own tumbler too? Visit a Starbuck near you! Or buy a cheap one that does the same. :D This isn't an advertisement btw.
I had a post similar to this when I was still starting back in June. That's when I met @immarojas cause she commented on my doodle work on a disposable paper cup.
Maraming Salamat!
Thank you so much!

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