Neopet's Crap
Daily Freebies

Fruit Machine

Coltzan's Shrine

Giant Omelette

Tambola

Faerie Springs

Giant Jelly
Suggested Crap
Grundos Gym

The income of going here may be low at first, but it gets bigger...Much bigger. After playing this game 200 times (you can only play it once per 24 hours), you'd be making 4,000np each time you play it, and it only takes a max of 5 minutes per day to complete.
Stock Market

On stock in particular is wise to invest in, TNAH (The Neopian Auction House). This stock goes up n' down a lot, but it costs quite a bit. I've seen this stock go down to 35np and up to 290np. What I do is but them like crazy when they get under 225np and save a million incase it drops down to 35np. For those of you who aren't filthy stinkin rich, just keep an eye on it, it may plummet again...
Dice-A-Roo
This is probably the best game to play. Only costing 5 np per game, it's easy to score items worth over 100 np's (look at my shop for example). There are also rare occurences that you may win a Negg or a fairy and sometimes this game gets your pet lvl ups. This usually happens on the 6th die, which is very hard to get to. Also, there's a slight chance of getting your items stolen if you get to the 6th die, so I'd suggest putting them in your deposit box. The quickest way to get stuff out of this game is to click the "roll die" button like crazy so you don't have to wait for each roll to load. Don't click it too many times though, you might be dead and not even know it.
Scorchy Slots
This game can get you fairies n' treasure map pieces, but it's a bit costly to play a lot. I have gotten many of my own fairies n' treasure map pieces from this game, but it takes quite a bit of luck to win this. Unlike Dice-A-Roo, you have to go through each play to make sure you don't skip any holding specials. I'd suggest playing this and Dice-A-Roo at the same time.