I also make musical arrangements for specific performances and concerts, mainly for small ensembles and for flute ensembles (for example, duets for two flutes or for flute and piano).
My current project is a collection of rather advanced and unique arrangements of canonic Israeli music. The first book has been published by Or-Tav Publications in 2018.
Being a Gilbert & Sullivan fan, I have made a few arrangements of known numbers from their famous Operas for two flutes. They are available here for download.