Legs for Dundun, Sangba, Kenkeni
For one Drum, to build a 3 legged stand, you will need...
3/4 Inch Schedule 80, PVC Pipe, available at Home improvement Stores, such as
Lowe's.  It is typically available in a 10 foot long piece, usually about $4      
At least 3 closed end, steel  S; hooks (They are inexpensive so get 6. Use 2 per leg)... a pack of 4 is typically  about $1   Bungee Cords (several) as needed and flat rubber tie down straps
       ....for  sangba, kenkeni  I use only bungee cords
        ...for  dundun  use the flat rubber tie downs, and bungee cords
"D" rings, the aluminum ones, commonly sold for key rings, large enough for the  PVC Pipe to pass thru.  This is an optional means to help keep the legs from splaying.
Make a Leg
Cut the PVC pipe into pieces about 30 inches in length... you need  3 pieces.  The 30 inch length is a suggestion.  The length of the leg determines the height of the playing surface above the ground.  You may want the surface higher or lower, to suit your own height and preference (remember you can always cut something shorter, if it is too long, but you cannot cut it longer if it is too short).  Best way to cut the pipe is with a radial arm, table, or chop saw (all power tools) to achieve equal lengths and an even cut.  It is likely that the place you buy the pipe will cut it for you (makes it much easier to get in the car too).  If you do not have access to these tools or to someone who can cut them for you there are some inexpensive options.... An inexpensive "miter"; box with back saw works really well as does just a hacksaw, or a pipe cutting tool.  Just try to keep the cuts "square"  to the length of pipe and try to keep the pipes the same length (slight differences in length will not be a big deal)
"S"  Hooks
Take the closed "S" hooks and using pliers (2 pair is best, one pair and a flathead screwdriver will work too) bend open the ends slightly (about 1/4 inch) so that one loop will go on the loop rope of the top ring. To be on the rope correctly, when you hold the "S" hook up, away from the drum surface, the other open end should be on the outside of the drum. Once the Hook is on the rope correctly, close this end with the pliers so as to prevent the hook from falling off the rope (keeps em from getting lost).  Space the hooks around the drum as evenly as possible (an easy way is to count loops in the top ring, divide by 3.....).  I like to use 2 "S" hooks per leg, one on either side of the leg, as it helps to inhibit wobbling.
Bungee Cords
Take the bungee cords and pass them around what will be the bottom part of the drum.  You can use just one that goes all the around or use several and go around the drum more than once, use your best judgment and see what works best. Just be careful of those nasty metal hooks on the each end of the bungee. ...often times I pass the bungee underneath the vertical rope (that is to say between the rope and the drum shell) , near the end of the bungee, so as to keep the hooks close to the body of the drum.  The hooks can be further protected from "biting" you with the judicious application of some Duct; tape (comes in decorator colors now).  For our Kenkeni, I carefully cut off the metal hook but retained the "knot" at the end of the bungee.  This bungee was threaded beneath the verticals. The knots at the end of the bungee keep it from slipping out and there is plenty of tension to keep the legs taunt. 
Install the legs
To put the legs on the drum it might be easiest to turn the drum upside down (playing side down).  Slide the leg up under the bungee (and thru the ?D? rings if applicable) all the way to the ?S? hook and place the end of the hook into the open end of the leg.  Repeat for each leg.  Once all three legs are in place, turn drum right side up and set on legs. Personally I leave the legs on the DunDun as it is a major bugger to get the leg under the flat rubber strap. We routinely remove the legs form the Kenkeni and Sangba for traveling.
Legs can be decorated. Wrapped with cloth or twine, or raffia....not too sure about paint on plastic...but vinyl shelf paper should work and then that can be painted on with magic marker..
The bottom ends can be "capped" (PVC end caps about 20 cents each)... it will make them slide easier (this may or may not be good depending on what kind of surface you normally play on)and prevent dirt from clogging the end..Bamboo, about same diameter works too.... But probably will not hold up as long. If you use bamboo for the legs, then try rubber or plastic chair leg protectors.Steel or Aluminum conduit will also work but is not flexible, weighs more, and will definitely scratch you and the floor.  For a really unique look (higher degree of difficulty) try using aluminum baseball bats as legs........ look for ones that ring like a bell and therefore can be used as such.