Walk down haji lane, look for the shop,THE BLOGSHOP. They have everything you looking for. Like Lomo cams such as the new Diana Mini . Lomo Fisheye 1 and 2, and all time favourite, HOLGA cams. If you can't find what you want, do ask the people there
there's RUBY at peninsula. right at the entrance. not sure how much they're sold for. and Objectifs, which are shifting in october i think. do check their website http://www.objectifs.com.sg too.
not sure how much they cost but i know the fisheye lens for diana costs around $80 i think. and the splitzer costs around $20. can't remember. you gotta look around. a lot of shops are selling lomography products nowadays.
There's Singapore Lomo Ambassador along Liang Seah St near Tong Seng Chicken Rice. Or this url http://lomotion.20.forumer.com/
Our own family of Lomo'ers.
The Blogshop got many limited edition cameras and could be more expensive. Welcome to the family..