This year I have been involved in a Birthday ATC swap run by Kate North.
There are 32 of us in the swap and each month we send an ATC to the people who are having a birthday in that month.
In theory when it is your birthday you will receive 31 ATC's-one from each of the other members.
Here are the ATC's that I have received so far--I haven't named who they are from mainly because it was so time consuming arranging them and scanning them that I decided to take the easy way out.
There were people from Australia- the UK-the USA-New Zealand-Spain-the Netherlands and Germany.
As you can see the techniques are varied---------