Questions about increasing elbow flexibility

I wasn’t certain whether this discussion belonged here or in the “Everything else” category. Sorry if I placed it incorrectly!:D I’m wondering if anyone knows effective methods to improve elbow flexibility, with the hope of eventually getting my elbows to touch each other (in addition to keeping them slightly closer together over time:P). Also, is this achievable for everyone, or does it depend on specific body types/joints/etc. (like being double-jointed)? I don’t have natural flexibility myself, which is why I’m curious. Would standard exercises like the ones in this link work: … dvisor.htm Or are there superior alternatives available?