brass eyelets for this purpose are on sale on eBay.
Here are two of my related saved searches:
https://www.ebay.com/sch/i.html?_sacat=12576&_nkw=%281_+components_+%2Ceyelet%2Ceyelets%2C+%29+%28copper%2Cbrass%2Cnickel%2Ctin%2Cgold%2Csilver%2C%29+-%28stud%2Cscrew%2Ccurtain%2Ccurtains%2Cdress%2Cpin%2Cpins%2C+%29&_sop=10&replaceid=28272496013
https://www.ebay.com/sch/i.html?_sacat=12576&_nkw=%281_+components_+%2Caderendh%C3%BClsen%2Ceyelet%2Ceyelets%2Crivet%2Crivets+%29+-%28nylon%2Cbrake%2Cmachine%2Csqueezers%2Csqueezer%2Cpulling%2Cnose%2Criveter%2Ccutting%2Ccutter%2C+%29+-%28shaver%2Cpneumatic%2Caerospace%2Caircraft%2Cgun%2C+%29+-%28arrow%2Cleather%2C3%2C4%2C6%2C8%2C10%2C12%2Cclip%2Cpop%2Caluminum%2C+aluminium%2Ctool%2Cblind%2C+%29+-%28spray%2Cplier%2Cpliers%2Cdome%2Cstud%2C+%29&_sop=10&replaceid=28272269013
There's lot of junk because it's not so easy to filter the items. Anyway, you'll find quickly some 0.9 or 1mm eyelets.
regards
Here are two of my related saved searches:
https://www.ebay.com/sch/i.html?_sacat=12576&_nkw=%281_+components_+%2Ceyelet%2Ceyelets%2C+%29+%28copper%2Cbrass%2Cnickel%2Ctin%2Cgold%2Csilver%2C%29+-%28stud%2Cscrew%2Ccurtain%2Ccurtains%2Cdress%2Cpin%2Cpins%2C+%29&_sop=10&replaceid=28272496013
https://www.ebay.com/sch/i.html?_sacat=12576&_nkw=%281_+components_+%2Caderendh%C3%BClsen%2Ceyelet%2Ceyelets%2Crivet%2Crivets+%29+-%28nylon%2Cbrake%2Cmachine%2Csqueezers%2Csqueezer%2Cpulling%2Cnose%2Criveter%2Ccutting%2Ccutter%2C+%29+-%28shaver%2Cpneumatic%2Caerospace%2Caircraft%2Cgun%2C+%29+-%28arrow%2Cleather%2C3%2C4%2C6%2C8%2C10%2C12%2Cclip%2Cpop%2Caluminum%2C+aluminium%2Ctool%2Cblind%2C+%29+-%28spray%2Cplier%2Cpliers%2Cdome%2Cstud%2C+%29&_sop=10&replaceid=28272269013
There's lot of junk because it's not so easy to filter the items. Anyway, you'll find quickly some 0.9 or 1mm eyelets.
regards