I collect a few, mostly with architectural themes of some kind. Here's a few of my favourites ...
Middlesex, Skidmore's 522a. Obverse - St. Paul's Church Covent Gardens. Reverse - same structure in ruins after being destroyed by fire.
From the Dr. Richard Doty Reference Collection of Conder Tokens.

Suffolk, Bungay 24b. Obverse - Ancient Tower Bigod's Castle. Reverse - Justice.
From the Dr. Richard Doty Reference Collection of Conder Tokens.

1797 British Penny sized Conder Token. Middlesex, Moorgate, from Kempson's Buildings Series. DH-79 Scarce. Obverse die crack from 11:00 to 5:00.
Obv: MOORGATE AS ERECTED MDCLXXIIII Taken Down MDCCLXVI
Rev: British Penny Token 1797. Figure of Justice standing.

... and my current favourite ... 1795 Scottish halfpenny sized Conder Token. Angusshire, Dundee DH-10. Obv: COMMERCE AUGMENTS DUNDEE Rev: DUNDEE HALF PENNY 1795 Old Tower Founded 1189.
It really is that blue with reflected light.
