Why don't you try knitting a small swatch to and placing it in your bra strap for a while to see if it feels good against the skin? I would suggest blocking the swatch first since you would do that with the FO anyway. That way you can accurately tell if it will be something that you would wear.
Knitting: "it's worse than crack!"-Ingrid the Wisea**
No great genius has ever existed without some touch of madness. Aristotle
That's a good idea about the swatch! I think it might be too warm and mohair bothers me against the skin. What about a vest to wear over shirts in the cooler weather? I just saw a pattern for mohair, I'll go look for it.
Oh yeah, I have this book from the library Greetings From Knit Cafe and she has a pattern in there for a simple, airy beautiful shawl. And it's done with yarn that is 70% mohair and 30% silk. But you have to have the book.
Her shawl is pink too! (but it doesn't require as much yarn as you have)
Do you like shawls? Being in Quebec it seems you might. (cold I mean)