The International Association of Amateur Heralds

The development of crests and trends is definitely worth researching. Does anyone know some old English rolls of arms that depict crests?

Arms & Crest of my Dutch friend, Emeritus Professor, Dr Don Scheers

The recent rebus canting arms of the Rev Pearson.

A Falcon on a mountain for Falkenberg:
A serpent with a brand for Wurmbrand:

I am not sure about this one, but the carbuncle is called a Glevenrad (among other names) which means wheel of glaives. In German it isn't that big of a jump from Kleve to Gleve. The charge, has different names, and they actually don't look like glaives. So it is possible that a canting name was retroactively applied to the arms.

The Rev Canon David Richard Staples - a relatively recent Grant from the Canadian Heraldic Authority

The 1520 bookplate of Johannes Eck.
An interesting optical illusion - a pyramid or looking into a corner?
Actually Eck is the German for "corner".

In the Netherlands there are a few places with the word Broek in the name, because it means brook. However, Broek can also mean breeches, so here is the coat of arms of Hensbroek: