That's how I'll write off my mistakes - spirit beads, since I tend to be a bit of a perfectionist.
Truthfully, I've studied many beaded works looking for the spirit bead. Having what you'd consider a flaw of a different colored bead or missing bead makes the work reflective of your spirit. That is because many times you don't intentionally do it & it is the guidance of a spirit or your ancestors.
Let it remain and have it result in a discussion item. Never know what others will uncover.
-B- "We do not inherit the Earth from our ancestors, we borrow it from our children."