In an emergency you can always use Duo which women use to glue on eyelashes. It works great but the tubes are small and too expensive to do numerous sets on a litter. You can find it in the women's makeup section of most drugstores. Can be purchased from any hardware store in the UK and Ireland. Solvent-free, Copydex is certified to comply with stringent EC child safety legislation.
Surgical glue is hard to find.
It is white creamy glue and is non-irritating. In larger cities you can find this glue at a medical supply store. For the past 8 years, I have been using a glue called VAL.A People in our kerry club used to order it in bulk from the company and then sell it to whoever needed it. At this time, Cherrybrook has it, as well as the solvent. It is the easiest, and most benign glue I've ever used.