If you know how to install softwares(OS, games, etc.) into PC or know someone who does, you can start a business with just 20K or even less.
Kadungog naka sa computer nga hulog2x ug piso? Pero PC ang naa sa sulod sa wooden box? It's like having an icafe with virtually no OH cost (such as rent, the huge electric bill that goes with the airconditioning unit and salary). Since it is coin operated and unattended (no salary for cafe attendants) all you have to pay is the extra electric bill at around 200 per PC/month. And what's more exciting about this is that it is like starting your own icafe business One-PC-At-A-Time!! coz you dont have the huge Break-Even Point that goes with the traditional internet cafe business.
My Net Profit with this kind of business is P 5,000 per PC a month on average. The pricing is 1 peso=3minutes. That's P20 per hour (hehehe a lot better that most icafe pricing). As of now, I already have 8 units outside our house. Well, some of those are owned by my mother, sister & bros. They kinda like the idea of having their money work for them. (cheers to you richdad187)
The idea is pretty simple actually. Here's how I did it:
1. Installed all programs needed on PC (including all games)
One PC unit costs me 13k. CPU is brandnew and Monitor I bought at Fastwin.
2. Had a wooden box enclosure built for the PC (with exaust fans so that my PC wont fry inside the box)
One wooden box cost me 1 and a half sheet of 3/4 plyboard.
3. Put the timer and the coin slot.
I think I can sell the preassembled timer to anyone interested to save you the hassle (Hmmm... another business venture hehehe) The coin slot, well you can buy it at any electronics store at down town area at P700 a piece or so. Or.. (another possible business venture

) you can get one from me, which is by the way, what I use now on my units (It can accept 3 different types of coin eg: 1 peso coin, 5 peso coin, & 10 peso coin (unlike the ones sold at those electronic stores). This can potentially save you from the hassle of ur customers having their coins changed.
4. Brought the unit outside our house and chained it so it wont get stolen
5. There it is: An "Unattended-Coin Operated PC" that's collecting all those coins in our neighborhood. hehehe
Bytheway, encase your wondering, i installed a program on my units that will shutdown the PC after the a period of time it remained idle so i dont have to turn it off myself when theirs no customer using it. I guess this tiny program makes my PC a truly unattended one.
PS. If your anticipating a problem on how to bring all those coins to the bank(a 5,000 worth of coins could be very heavy and takes a lot of time for a bank teller to count), you can call any Mcdonald's branch. They would love to change all your coins into bills and what's more they'll give you a value meal or two as a thank you gesture! hehehe