You can try catching them from shrubs under shade. I posted a lot of pictures to show the type of places you may find them. Or you can buy them from viper88 or me loh..

Besides fighting them, they can be quite fun to keep too. One of the reason fighting spiders are so likeable is because
1) Being jumping spiders, they have 2 big front eyes, hence can look at you like with human eyes. This makes them pretty cute. They actually have bifocal vision(overlapping field of vision of the two eyes) like humans which enable them to differentiate distance very well. They catch insects by stalking them like a tiger.
male. female
[attachmentid=394545][attachmentid=394548]

2) Fighting spiders are hand friendly. Newly caught ones maybe a bit wild and will try to jump away from your hand. But after a while when they get used to your hand, they will comfortably walk and jump about on your hands. Not all jumping spiders can be hand tamed. Most house spiders you see walking about in your house are impossible to get them used to human hands and will jump away once they touch human hands.

3) Their colours are pretty! Although their markings are quite uniform throughout their species but you cant deny their irridescent colours are quite attractive. Actually there are several species of the same genus and they can be found in many different countries, up to india, hongkong and taiwan! Different species have different patterns and size. In malaysia itself i know of another 2 species.

4) When you take them out to play they are very active creatures.

5) They are easy and almost free to maintain