Welcome! This is a SUPER simple and easy to make project. IF you know how to hack blocks! I learned it from @Hardmath123 (http://scratch.mit.edu/discuss/topic/1810/). After I did the basics, I tested around and figured out how to put a "bubble" (like a variable with the little box next to it. I just call them "bubbles") inside a dropdown! Then, I just had a great idea and just put this together. As you can see, it's super simple. It only has two scripts and two sprites! (one sprite is the thumbnail) So, enjoy!
You can use the hacked blocks with credit. All made by me! :D Love, fav, comment, and follow!