How can i cheaply cut grass short enough to putt on, without using riding mowers, or...

[Jon]

...anything too advanced? Over near my friends house, there is a huge, and flat drainage hole thing. (I would guess probably like 350 yards long and 100 yards wide) The one half is mostly jagger bushes and woods, but the other half is cuttable. We asked the neighbors, who the township told could do what they want with the hole, if we could build a "golf course" in it. They are very nice, and said that we can do whatever we want to it. We have 9 holes, the shortest is around 35 yards, and the longest is probably around 100 yards. To make it easy, all holes lead to the same green. I have a heavy-duty weed cutter, which we cut the fairways, tee boxes, and green from, and it probably cuts the weeds and grass to about an inch. This is great for tee shots, fairway shots, and chips, but the only problem is that while on the green, the grass is too long to putt on. Right now, we are just putting with wedges, but it would be much better with real putts. We are only 14, so we dont wanna spend much or any money on this. (Our parents would probably put in like $50 at the most) It is hard to explain, but it is basically impossible to get any riding lawn mowers down, to cut the grass really short. I have been cutting the fairways, tee boxes and rough with my cutter, and my friend has been cutting the green with a regular push mower. with the mower, the "green" gets cut a little shorter than the fairways, but not much. We dont expect the green to be PGA tour worthy, but just puttable. Can anyone think of a relatively easy, and cheap way of doing this? We also dont want to get professionals to do this, because that would be expensive, and less fun. All we want to do is get the green's grass as short as possible. We have thought of putting a giant piece of cheap carpet (which i have) over the green, to kill the grass, and just putt on the carpet, we have thought of killing the grass with chemical weed killer, and pretty much everything else. If you have any new ideas, or ways to better cut, or kill the grass, please tell me. Thank you.