One can construct an aligned pointer on a chunk of allocated memory by asking for the needed quantity plus the size of the alignment and the "nudge" the pointer you get to the next word boundary (and you can do something with the "wasted" byte before it, like storing the size of the object).

But that sort of trick is only worth it if you are writing a compiler and its runtime, an interpreter, a memory allocator (in particular GCs) or at the very last some sort of high performance library (you would return your "featured pointer" as an opaque type to the user).