Ya need a 6" Japanese backed fine cut saw. a drill motor....well and some sand paper (we ain't counting that as a tool. go to woodcrafters and by some 1/8" thick black walnut. use a square board as a sawing guide and cut these out
1 - 2&1/2x1&3/4" bottom
2 - 2&1/2x7/8" long sides
2 - 1&5/8"x7/8" ends
2 - 1&3/4"x15/16" tops pieces so ya get a 5/8" sound hole
just use butt joints and glue the end piece inside the side pieces. get them square as ya can. when dry glue the bottom to the sides and end. at the same time ya can glue the two top pieces on the top so that it leave a 5/8" slot in the middle of the top
i got a piece of slat at the rock shop and cut a 1&3/16"x2". I found a seam and busted it into thinner pieces. i took one of the peices to the belt sanders and thinned it to 3/16" thick. so i got a 1&3/16"x2"x3/16". now glue it on the top over the sound slot and equal distance from each end getting.......
not near as neat or versital as 4nolz's but ya have to have few tools. if ya want to build on ya might check the source that he gave in his excellent build along.
I found that if ya drill a 1/2" hole 2" deep into your stricker and use a 1/4" hickory dowel it gives ya a much better sound. drill a 1/4" guide hole first in your sticker 2&1/2" deep. then use tape and mark 2" on your half drill and use the quide hole to drill 2" deep 1/2" hole. put your dowel in the hole, press it in the 1/4" end of the 1/2" hole. cut your dowell so an 1" extends out.