No idea if this is what you are looking for ... I just did a simple Google and found
http://fieldguidetoquilts.com/1Star/...SnowFlake.html
.... scroll down to see two possibilities, Pontiac Star and Michigan's Pontiac Star ...
Then click to a link with some variations.
Another option ... if you have 100 blocks already, then maybe not worry about the final 32.
That way it can be said that allt he blocks were made by his Mother.
A nice gesture for the Bride and Groom.
Otherwise, posting a photo is always best, as then we know "which" Pontiac Star you are ISO!