I'm enjoying reading all your contributions so far. Just a few minor queries, if the authors or anyone else can help...
Paul 32. Not sure how 'ax' is Y. I can't find 'ax' as an abbreviation of 'axis', and I considered the guitar possibility. Unless I'm barking up the wrong tree anyway.
Tyke 34. Do the camel's innards need a grinder?
Jimmytgal 40. Not sure how 'bones' = RY?
Aristo 43. I have a sneaking suspicion there is more to this than meets the eye, unless it is a straight DD?