Step 1: You will need
Mini breadboard size 4.5x3.5 cm
Arduino pin headers**
* Hot glue wont cut it
** Normal female pin headers can also work
Optional, but recommended:
Step 2: Sanding
This will do two things:
1. it will help the glue to stick better.
2. The breadboard is slightly too big so a little sanding doesn't hurt.
Step 3: Glue
Apply some super glue to the breadboard sides and smooth it out with a piece of paper or anything else suitable. Just be careful it doesn't stick to your workspace desk when you put it down.
Apply glue to the pin headers - be careful, you don't want glue in your arduino!
Clamp both parts together or hold them with your hands (be care ful not to get glue on you).
Once it cures... you're done :)