The merchandise are available at artifact store, 14 Scotts Road, #04-39 Far East Plaza, now till end of December. Below are the pricing.
Logo Patches - S$2
Poster - S$10
Trucker Cap (White/Black & Black/Black) - S$40
Flocking Printed T-shirt (White & Black) - S$40
Pocket T-shirt (White) - S$50
Work Shirt (White & Black) - S$80
Items sold are non-refundable and non-exchangeable.