Secondly, the next game on the 27th was set to be a .10/.25 game with $50 max buy in. How would y’all translate similar stakes for antes/limits on some of these new games?
To get on the original question, this looks to be a mix of limit and no limit games. Just to be clear, I do assume limit structures have an early limit and a later limit that is twice the early limit. The early limit is in use for the first two rounds of all forms, and then the later limit for all rounds after that.
My rule of thumb is that when mixing limit and no limit games, the limit games should have an early limit that's double the big blind for the no-limit games to keep the risk factor similar. The later limit of course becomes twice the early limit (or 4x the NL big blind.)
So since you stated a big blind of 25c, the limit games would have stakes of 50c/1.
Now that we have set the stakes, we will break down the other amounts needed to structure each game by form.
In button games (hold'em-type), we need to figure out the blinds. The big blind should always be the same as the early limit, that's straight forward. The small blind would typically be half of the big blind, but really it could be any fraction convenient for the chip set including being the same as the big blind. In your case, I imagine quarters are in play and doing a 25c small blind for limit button games would be straight forward.
In stud games, we need to figure out the ante and bring-in. Most stud structures will have the bring-in be some amount between 25-50% of the low limit, and the ante would be between 25-50% of the bring in. For your game, I would see using a 10c ante and 25c bring in as an option as being a fairly natural choice.
So this is what I would post in your invite.
NL Blinds 10c-25c
Limit Stakes: 50c/$1 (blinds 25c-50c, stud ante 10c, bring in 25c)
I think the above would be very easily understood for your players. However, I will throw in a couple alternatives depending on what denominations you may want to use.
Alternative #1 - eliminates nickel chips.
If you change the NL blinds to 25c-25c and introduce a table ante for stud, you can eliminate nickel chips from play and still play limit games with 50c/$1 stakes.
So you could put this in your invite:
NL blinds: 25c-25c
Limit Stakes: 50c/$1 (blinds 25c-50c, stud rotating table ante* 75c, bring in 25c)
A rotating ante pretty much requires a round of every game is played. (Which is something I whole-heartedly agree with
@NotRealNameNoSir about doing so time is not lost explaining a new game every hand) The other tricky thing about rotating ante is that it requires use of a "button" which stud does not otherwise require (typically in a mixed game, the button would "freeze" during a rotation of stud until the next button game is played), and the rules need to be understood if someone is away when the ante is due. My suggestions.
Rule A) Seated players that are dealt in for at least one stud hand will pay the table ante in turn, whether or not they are present for the actual hand when their seat is due for the table ante. Players away from the table and have not yet been dealt been dealt in this round will not pay the table ante if they are away when their seat is due the rotation. If such a player returns before the end of the round, he will have the option to pay the table ante immediately to be dealt in (instead of the player that was otherwise due to pay the table ante, and that player will instead pay on the next hand and the normal rotation will resume at the point) or sit out the remainder of the stud round with no additional penalty.
OR Rule B) During a stud round, all players post the table ante in turn whether or not they are present when their seat is due.
Rule A is more in spirit of the cash game where people missing hands to smoke, take phone calls, or whatnot is certainly permissible. Rule B, has the simplicity of a tournament rule, where all forced posting happen in turn no matter what.
Alternative #2 - Dime-Half chips
Another option would be to consider playing with dimes and halves instead of quarters. The invite could look like this
NL blinds: 10c-20c
Limit Stakes: 40c/80c (blinds 10c-20c, stud ante 10c, bring-in 20c)
(FWIW, this is what we do in my micro dealers' choice game, since my set uses dimes and halves.)
So just a few thoughts. I really wanted to mostly lay out how to apply good calculation on antes and bring-ins for any limit stake.
Hope this helps,