Wood is a living material. To preserve the brilliance of your beads, avoid immersing them in water. A simple wipe with a soft, dry cloth is all it takes to remove dust. If the beads are untreated, you can apply a drop of coconut oil or beeswax to nourish them and give them lasting protection.
Absolutely! Raw wood beads are porous and cling very well to acrylic paint, multi-substrate markers or varnish. A little tip: use a skewer pick to hold the bead while you paint it, to avoid fingerprints and facilitate drying.