Studio Mailbox in Germany is asking mail artists to send postcards on the theme of "Mother's Day." Theme can be broadly interpreted. Details for this call can be found here: http://studiomailbox.typepad.com/tales_from_studio_mailbox/2010/02/call-for-mothers-day-mail-art.html.
Deadline is April 9, 2010.
Send cards to:
TJ - Studio Mailbox
3 contributors will be randomly drawn for prizes.