Those bobby pins are used extensively on my Stemme and I lost two that
fell out of their retaining strings during taxiing operations leaving me
with only one spare. A quick search found 1.2 mm hitch pins at WalMart
(of all places). I got a bag of 50 pins for under $8. Here's a link
https://www.walmart.com/ip/50pcs-R-Pin-Mechanical-Hitch-Hair-Tractor-Clip-Cotter-Kits-1-2mm-x-20mm/192285117?action=product_interest&action_type=titl e&beacon_version=1.0.1&bucket_id=irsbucketdefault& client_guid=08eca404-93c5-47c8-8bad-9db956f82326&config_id=106&customer_id_enc=&findin gMethod=p13n&guid=08eca404-93c5-47c8-8bad-9db956f82326&parent_anchor_item_id=145509336&paren t_item_id=145509336&placement_id=irs-106-t1&reporter=recommendations&source=new_site&strate gy=SMT&visitor_id=a431WZ4QnJIK7iObjxmdVg
for anyone needing the same. I've tried them and they fit.

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Dan, 5J