The Parts you will Need are:
A Neck ( I built my neck out of a straight piece of wood that i shaped until i was happy with.)
A small drum. (I originally bought mine from here
. Which was ideal.) Try to look for one with an uneven number of tuning pegs as then there will always be a space where the neck will be opposite a tuner where the tailpiece will go.
Tuning Pegs. (I used the cheapest friction pegs i could find from,
A Banjo Tailpiece. (From Here
A Bridge. (From here
A Ukulele Nut. (From here
Small Gauge Fretwire. (From here
And some strings.
You will also need some excess wood for finishing and some wood screws.Tools:
General woodworking tools