i see that, not for the first time, my attempts at discretion have left some of my oversees readers puzzled. all i can say is, please do not attempt a google image search for wedding tackle unless you are of a strong constitution.
i will attempt to explain my euphemisms without offending those more sensitive of my readers.
take a dog like my goodself. turn him over. at one end will be his head. at the other end, his tail, or what passes for a tail in some breeds. from the tail work your way (visually rather than manually, i would suggest) towards the head. first you will come across the little hole where the icky stuff comes out. then you will come to a little bag containing mysterious marble-like things (unless said dog has had them stolen, as in my case). then you will come across a long pipe which is fixed to the undercarriage of the dog with fur but which occasionally pops out to say hello (in the case of our household this can cause alarm among the humans).
the marble bag and the pipe together comprise the wedding tackle. they are so called because they come in handy on one's wedding night. and on other occasions too. a bit like fishing tackle for fishing, if you get my drift.
and as for knitting our own electricity, i am afraid my boy and his pithy sense of humour is to blame. whenever herself comes up with a money-saving scheme my boy will roll his eyes heavenwards and say "oh no! another knit-your-own-muesli scheme!" there are variations on this but 'knit-your-own-electricity' is entirely herself's own work.
so there you are. at ease...