You can usually find them at any
Royal Selangor Pewter Shop. Below are Singapore locations:
Royal Selangor
176 Orchard Road
#03-02 Centrepoint
Singapore 238843
Tel: +65-6235 6633
Royal Selangor
252 North Bridge Road
#03-24 Raffles City Shopping Centre
Singapore 179103
Tel: +65-6339 3958
Fax: +65-6339 7996
Royal Selangor Pewter Centre
3A River Valley Road #01-01
Clarke Quay
Singapore 179020
Tel: +65-62689600
Fax: +65-62686300
Takashimaya (Concession Counter)
391 Orchard Road
B1, Household & Interior Departments
Takashimaya Department Store
Singapore 238873
Tel: +65-6737 5766