Headphone connect direct to Amp

Are there any headphones that can connect directly to an amplifier's speaker posts? I imagine that higher end headphones, or "cans" I guess to our fellow audiophiles accross the pond, have interchangeable cables with perhaps spades, bannas, etc??? Just curious.

Signed,

"Only enough money for headphones but have a source and shopping for a SET integrated which may or may not have a headphone jack."