I went to a cousins wedding this summer, It was very casual...
On my aunt and uncles acreage...We all stood and watch the quick outdoor ceremony.Then the reception was in the huge green houses, very casual, buffet etc.
Anyhow, The bride a groom had a big jar in front of them on their table and people were putting money in it...
And then some people put in like $20 and would bang on it with a fork demanding a big kiss to take place!
The MC (brides brother) mentioned many times about the jar and how people could donate to a honeymmon, pay for kisses etc...
I'm not huge on etiquette and rules, But even I thought it was tacky.
So now my mom suggested that for MY wedding...ummm NO