In rural Thailand when people get married they have a traditional village wedding. If there is a wedding on and you would like to go, we can probably get an invitation so you can go to one during your holiday discovering Thailand. I don't fully understand the ceremony as of course it is in Lao/Thai but I will show some aspects with photos from our wedding and others we have attended.
Money is an important aspect of a village wedding and before the wedding at the time of betrothal the bride and groom's families negotiate a bride price. This can be very expensive depending on the value of the bride and the wealth of the groom's family.
This is offset to some extent, as the bride's family pay for the wedding, but then the wedding guests make monetary gifts as well which the bride's family keep I think. Meticulous records are kept of the amount given by the guests and my understanding is that there is an obligation to pay back the amount at a subsequent wedding.