This collection of 24 clear stamps has the right sentiment for any time of the year.
Coordinating set idea: A Birdie Told Me
Approximate stamp sizes:
[thanksgiving] 2"W x 1/2"H
[birthday] 1 1/4"W x 1/2"H
[heart] 3/8"W x 5/16"H
[day] 1/2"W x 1/2"H