One or two freebies over the years:-
A Webley Mark III back in the mid-80s.
More recent times :- HW77 Mark I, a few marks. Fitted a V-Maxh kit and new foresight/catch assembly. It now wears the synthetic thumbhole stock that the Boinger Bash Boys gave me! Total cost? £86 for the kit and foresight! Absolutely love this gun.
An Airsporter Stutzen, mint, part exchanged it for a new 97!
Umarex Walther CP88 thingie, part exchanged for a new HW40.
Cheap, a couple of years ago, a mint, hardly used 97K, with 3-9x50 budget scope and bag...£150!