anyway, thread starter.
You can try visiting the beach road army market.
Its the 2nd/3rd floor of the Golden Mile Hawker Centre.
I usually buy those light stick/bracelets from Concourse Top Level
Party Favours/stationary shops.
You can also go to Bugis Village, lots of those party favours shops
at the side between KFC & Macdonalds.
try for the thin connect-able strips, you can make bracelets &
necklace. Or use it to spell out names.