Rather than do nothing or just wait, I decided to Do Something about at least one icon. As I'm no artist, I looked through images to see what could be adapted. This one looked promising for the phone icon, and so was used. A bit of image editing and part of one panel has become the accompanying icon. I don't know if this is the final version, as I am certainly open to improvement or replacement, but at least I have something for now.
[ADDENDUM: And thanks again to
kinkyturtle who not only drew the original but cleaned up (or replaced? not sure) the version I had to something that looks better.]
[FURTHER ADDENDUM: Original icon has been replaced with another, made by
krag_carbine.]