Most often, male condoms are made from a rubbery substance called latex. Non latex condoms were developed as an alternative to traditional condoms. One of the most popular types of non-latex condoms is the polyisoprene condom. This substance is thinner than latex and has a natural feel that is very similar to human skin. You can also find non latex condoms made out of polyurethane.
The marriage license is what you sign with your officiant either before or after the ceremony. The marriage certificate you can get from the county clerk. Each area is different in how long it takes to process.
A license is just that....a license which ALLOWS you to be married. Just as your driver's license allows you to drive. Yes, it does expire if you do not have a wedding and an officiant sign it within the allotted 60 days. Now, however, this does not have to be a lavish ceremony. But it does need to be done. So if you want it to be just the two of you, then schedule something with the court.