What pieces are used to create this Djembe MOC?
From the looks of it, the base is made out of a 4x4 red plate (#3031) and a 1x4 red plate (#3710).
On top, you have 3 1x4 red tiles (#2431) arranged in a U shape within the center of the U 3 1x2 tiles with center stud (red - #3794) and 1 regular 1x2 tile (#3069), like so:

________
|_______|
| |_o_| |
| |___| |
| |.|.| |
|_|_|_|_| 


The seat is a hinge piece (#3938 on #3937), sitting on 2 of the 1x2 tiles with center stud, whereas the djembe itself is a 1x1 cone (#4589b), an inverted 2x2 round disc (radar - #4740), a 2x2 round disc with X hole in center (#4032) and then the finishing 2x2 round tile (with optional pattern - variants of #4150).

The cone, inverted disc and 2x2 round pieces are attached together using a Lego Friends magic wand #87994pb01 or a Bar 3L (#87994), though I don't have access to such a bar and hence wasn't able to try it out in my draft build, but I did test out a Bar 4L (#30374) and know that that works if trimmed down to about 3L. Alternatively you can use a tool screwdriver (#6246a), but this doesn't secure the top 2 round pieces very well.

Here are step-by-step instructions :) :