My first pair of tall boots came with boot garters.
For those of you too young to remember, this was in the pre-everybody has custom made boots days, and they were to keep your tall boots from falling too much.
My next pair had patent leather tops. Yikes! (Still technically correct for a rider who has earned their hunt colors or formal wear, but everyone stopped wearing them after George Morris said they created another horizontal line and made your leg appear shorter.)
I also showed once as a junior in canary britches and a tweed frock style coat (nipped in waist and big flaired skirts.) I have had all the helmets that the OP posted, as well as the derby on a leash for formal hunting.
I also remember the ratchatcher shirts with the ties made out of the same fabric, anyone remember them?
Or the chokers for a ratcatcher in a contrasting color?
How about rust britches? I show my roan horse in rust britches with a gray jacket with a rust pinstripe and thought I was stylin! I had grey britches for showing other horses, they were a big fad in the 80s!
Also rolled tack, which I thought was hideous.
I'll keep thinking, maybe look through some photos, I'm sure I've got more.