Funny! I grew up in California, so all of these sound absolutely normal to me - with the exception of solder - I pronounce the 'l'.
I don't get the 'oregano' comment though.
By the way, it's equally strange for Americans to hear Brits prounounce "h"'s where we don't - herbs being one example, and where ever the letter 'H' is used in an abbreviation being another (like the 'HR' department). We pronounce the letter 'H' on it own, phoenetically like 'aitch', and here most people say 'haitch'.
Yeah, the "haitch" thing gets me...
DH thinks it cute when I say "erb," I'm trying harder to say Herb, but the old Erb still slips out now and again...
Al-you-min-E-um really annoys me.... DH gives me such a hard time about it, but it will ALWAYS be alooooominum to me!!

I sometimes struggle to understand Fillet. How can you say "Fill-it" Mignon? Doesn't "Fillay" Mignon sound better? I can use "fill-et" with things like fish, chicken, etc., but if it's steak we are talking about, it has to be "fillay," mignon, or no mignon. Probably all those years of working in steakhouses in Texas.
