There were a few parts of the design.

Attiny

I used an ATTiny24(Equivalent to 44/84). I added a programming header, an LED for the nose, and connected it to the speaker(hopefully I can program this). The only slightly complicated part was that there were not enough pins to drive it using a differential drive(this is an idea I got from ATTiny Low Power Prank). I connected the speaker to MISO/MOSI, and then attached a connector that I could bridge with a shunt. I'm quite sure there is a better way to do this, but I am not sure what that would be.

Charger/Power Management

In the version without a LiPo Charger, I used a 5V linear regulator, so I can probably use any battery/power source over 5V to power it. 

The charger version implemented(aka copied) Adafruit Powerboost 1000C. I copied their schematic and looked at the Application Notes for both the ICs to choose the values I wanted. Lets find out if this works(if I can even solder it lol).