

LOL -- I got my last sharps container from a thrift shop, seems one of the senior residences/nursing homes donates surplus stuff there
most pharmacies will have them, may be on the shelf, you may need to ask at the pharmacy counter
Walmart online shows them, so does Chewy
https://safeneedledisposal.org/sharps-management/management-and-disposal/
our local laws allow them to be disposed of in a sturdy plastic container, taped shut, labeled, so I have a liquid detergent bottle to load them into, once I have the official sharps container nearly full (using that container in the interim so no one messes with them)
these syringes actually come packed in a sharps container ! https://www.amazon.com/UltiCare-Vet...ainer/dp/B01MRCX4A0?tag=felinediabetesfdmb-20
(not necessarily the best nor the cheapest, just giving you an idea)
defer to others as to where to buy good syringes in quantity and price ...
one complaint -- the Walmart U-100 syringes, .3cc's .. have the most tenacious needle caps ! I thought I was going to have to use pliers !
finally used a coozie made of wetsuit material, to hold just the cap while I yanked the syringe away from it -- not a safe procedure !