Well, if you want a little project...
Grab some old-school microphone cable that has braided, tinned copper shielding. Disassemble about a foot of it to get the braid (or order a whole spool online if you want.) Strip your speaker wire about 3/4", and tin. Expand the braid and slip over tinned speaker wire. Solder them together. Heat shrink connection with color-coded tube of "x" length. (We'll come back to that in a second.)
Now, get some 3M VHB tape, the red stuff, at an auto parts store. Make a bracket to stick on to the back of the receiver/amp that spans the width of the push-on connections, and provides support for you to tie wrap the speaker cables so they hang straight down, about 3/4" or so away from the connectors in the horizontal and vertical direction. Now, tie-wrap the speaker cables to the stuck-on bracket, and determine what length will allow you to form a gentle 90 degree bend in the braid from vertical to horizontal. Pull the braid tight, (so it gets skinny), tin just a small bit where the cut will be, and trim braid to length. Your heat shrink length should be just long enough to cover all but about 1/4" of the added braid. The goal is to have the tinning hold the end of the braid together so it doesn't fray (like about 1/8"), and small enough in diameter to get all the way into the connector, but keep that bit short enough that the pinch connector can grab un-tinned braid for a good hold and electrical connection. (Clamping on a tinned wire would give just a few points of contact, instead of max contact.)
Repeat for all 4 (or 8) wire connections, and keep the heat shrink lengths and loops of braid the same length to, umm... enhance tonal clarity and darkness, and expand the visceral soundstage. Yeah, that's the ticket.
Way too much work for me, but it'll look nice enough. I'm sure you can buy oxygen-free, cage-free organically grain-fed versions on the interwebs, too.
If it's not an uber-collectible, I'd retrofit 5-way binding posts in a non-destructive, reversible way. Bag and label the old connectors and store them safely inside the unit with tie-wraps, for the next guy.
Another approach would be to put the speaker wiring on the side you don't look at very often.
Chip