Hi there!
I know I have always said that stamps here in Spain are uglier. But now, I have to tell you, they're quite modern! They have been using some cool things in the making of Spanish stamps. There are many stamps with original shapes, not squared. For example, I have stamps shaped as chess pieces or buildings. There is also a plastic clear stamp, so cool on colored envelopes! There are some models of stamps with qr codes, and augmented reality (but I haven't try those yet!). There are some with holographic foil, and some with raised designs. I'll try to take photographs if you are interested on seeing them.
Meanwhile, let you know that I am using for the Hearts Affire Exchange some stamps with the shape of an Eucalyptus leaf and aroma! If you happen to receive one, rub it a bit and tell me if it does still smell!
And I am now curious to know, are there any special cool stamps over there?