A friend of mine told me about this proposal and I helped him. It's in Spanish, but I think is very understandable.
This is a proposal about the fusion of several municipalities in the province of Seville (Spain). Nowadays it is divided in 8 different towns, but due to the expansion and growth, now they conform a conurbation where borders between them have lost their sense.
Now, due to the division, there are 8 different town halls, with 8 mayors and 156 councilors. With this proposal, once all the towns are merged into one municipality, there will be only one mayor and 27 councilors.
The data about population is from January 1st 2017 and the election votes are from the last one in may 2015.
I also made up the Coat of Arms.