Let's not forget that this is a core book. In past editions, the crazy-weird stuff never came out in the core books, either. So anyone claiming that these items are boring is only highlighting his own lack of patience and ingenuity.
In fact, all you have to do is Google "D&D Marvelous Magic," and you'll find a pdf of a delightful BECMI supplement chock full of wacky stuff, most of which requires little or no effort to convert to 5e. And when I say "no effort," that's exactly what I mean -- a lot of these items break the rules of reality and narrative rather than game rules, so conversion is simply not necessary.
In fact, all you have to do is Google "D&D Marvelous Magic," and you'll find a pdf of a delightful BECMI supplement chock full of wacky stuff, most of which requires little or no effort to convert to 5e. And when I say "no effort," that's exactly what I mean -- a lot of these items break the rules of reality and narrative rather than game rules, so conversion is simply not necessary.