individual or carve a pattern or a personal design, as for the finish you could use straight sawn timber
and simply sand it, without any other detail being introduced.
This one is from an Oak offcut.
Step 1: Tools and Materials:
Fret saw, Jig saw, Scroll saw or band saw.
40mm Forstner bit. (but a spade bit would do - an auger would make a real mess).
2mm twist drill. (or nail).
Sharp 1/4" chisel. (or knife).
Oil, wax or whichever you prefer. - I go for natural wax or Danish or Tung oil.
Suitable wood, approx, 12mm - 25mm thick, 250mm - 300mm long, 50mm - 75mm wide - These measurements are only a guide as you can use your own design,
Step 2: WARNING!
Sharp tools and power tools are dangerous, you may hurt yourself if you don't take care.
Some wood finishes are flammable, so don't use them to finish a candle holder.
Never leave a burning candle unnattended.
Step 3: Get Your Pencil Ready...
such as knots and burrs to guide you so that you end up with an "organic" look.
Make sure that the end where you want the t-light to be is wide enough - at least 50mm, to accept a 40mm wide hole.
Step 4: Next...
Step 5: Drill the Hole to Take a T-light
take care that you don't drill too deep.
Step 6: Roughly Shape It...
Step 7: Then...
Step 8: Now...
Step 9: Drill a Hole As Shown..
Joss stick/incense stick.
A small nail could be used for this also.
At this point you may want to create a shallow channel, to better contain the incense ash, using a gouge or hook knife.
Step 10: Finally...
Step 11: The Finished Product
The forstner bit is a worthwhile investment.
Thanks for your time.