I offered a 100 point bounty to my question here: Exercise in Engelking's book regarding a disconnected space. I solved the problem with a little help from a couple of the commenters, and wrote the solution in my original post. No answers were given. Doesn't seem right that the 100 points should just disappear...
From the Meta Stack Exchange bounty faq:
Can I award a bounty to my own answer?
No. This used to be possible, but it has been disabled. The user would not get the reputation back, and the bounty will be displayed as +0, “this answer has been awarded bounty worth 0 reputation”.