Clysmavials of 3ML no longer available preparation of chloralhydrate and Valium rectioles. What is the best alternative?

We have 2 preparations for rectioles, one with Chloralhydrate 500mg and with Valium 10mg. The 3 ml clysmavials we use for this are no longer available. We have already heard from several companies, but nobody still has it in its assortment.