Water spray alarm clock

Hi All. This is a water spray alarm clock I made. It uses an Arduino Mega, which is connected to two servos to pull the trigger on a water spray bottle or a water pistol. The trigger is attached to a bungie cord which wraps around a wire spool. The input is set through a TFT touch screen. I have provided all the code on my github repository ( https://github.com/jonathanrandall/Water_Spray_Alarm_Clock).

Any feedback and suggestions for improvement are appreciated. I built the frame out of vintage meccano, but I have since got a 3D printer, so any suggestions of how to incorporate 3D prints are appreciated.

Thank you.