Fun little game! I like the interpretation of the theme (BUILDing a SCALE model). My one little nitpick is that the tip of the tweezers are the same color as the background outside of the bottle. I was really confused at first because I was trying to click on the wrong place. Once I got the hang of it, it was fine, but maybe change that color to make it have more contrast with the whole screen. Didn't stop me from finishing it though! Nice work!