(adsbygoogle = window.adsbygoogle || []).push({}); Not sure if this has been posted yet or not, However there is a cool bug in LBP that messes with the properties of materials. It's very simple to do and don't worry it's safe to use plus it can be very useful in levels you make.

Step1: Start with a base material (The material you want to steal the properties from)
Step2: Use the deadly gas tool to turn your base material into gas.
Step3: Use the material changer tool and select a new material and apply it to the gas. (You wont see anything happen yet)
Step4: Now use the unleathalize tool to get rid of the gas and your new material will have the properties of the base material.

Example: Start with dark matter as base material and follow steps, On step 3 select glass and continue on, When finished you will have a block of glass floating in mid air since it has dark matter properties. Have fun experimenting with this.

nice im gonna have to make some new levels doing this