Wow, the yellow strap from the Rossi really pops on the EWC. I've often thought of acquiring the full suite of candy-colored MCE accessory straps for my EWA.
I have the blue rubber that came with the Tides of Time edition, so I'd have to target this yellow variant from the Rossi, the orange iteration from the Paris boutique's "Orange Crush," and possibly a flat black standard JLC rubber unit for "stealth" outings...
Best,
Tim