I bought the Cote&Ciel Spree Messenger Bag in Grey Melange from city'super at Harbour City in Hong Kong for HK$1,250, about S$200. The medium size fits up to a 13-inch laptop. I'm now a Cote&Ciel fan, their designs are unique.
The Innergie PocketCell Duo was unveiled at CES 2013 in January, succeeding the PocketCell that retails in Singapore for S$79. This light portable charger weighs 132.5g, holds 6,800mAh, and outputs 2.1A per USB port, ideal for charging high-capacity devices quickly.
I bought the Twelve South HiRise for iMac at Hysan Place Apple Store in Causeway Bay, Hong Kong, for HK$618, about S$99. I couldn't find it in Singapore, not on Apple's stores, so your best bet is Twelve South's website.