the key word being make and sell. the design is publicly available, you just need to have the patience to build one yourself and you can have anything you like even if it is patented
OK. But the prohibition is enforced by the patent holder suing for damages. It seems 1) unlikely that the patent holder will discover the infringement in the case of a DIYer, 2) that they will go to the trouble of suing for damages and 3) that the damages will amount to anything significant.