It appears that a toxic chemical has been used in these beads in place of one that is safe.
When swallowed, this chemical is changed to GHB in the body.
GHB (gamma hydroxy butyrate) is a potent sedative and anaesthetic.
The signs will vary according to the number of beads swallowed.
A child mildly affected may be slightly drowsy or disinhibited.
With higher doses children may develop nausea and vomiting, dizziness, slurred speech, become very sleepy or have an epileptic fit.
All symptoms should resolve over several hours.
For children that are mildly affected visit your GP or local hospital.
If the more severe signs develop call an ambulance or visit your nearest emergency department.
Do not administer emetics to your child or try to force them to vomit.
Parents should remove the beads from children and place them out of reach.
Children who haven't swallowed any beads and who are not showing signs of drowsiness or nausea are not likely to be affected.
These children can be watched at home - if no symptoms develop within one hour it is unlikely that they have been affected.
Just touching the beads or the mosaic is not thought to cause any health effects.
Keep them out of the reach of children.
See the Office of Fair Trading website for further information about safe disposal or return of the product to the distributor.
For further information please contact the Poisons Information Centre on 131 126 or your local Population Health Unit.