Those cases aren't real leather, but they are an amazingly good imitation. There is also a divider in them so they will hold 2 slimlines. Try Pens of Color. I bought some leather cases there several months ago and they would be fine for slimlines that aren't straight B2B.
Ron,
I googled leather pen cases & I got a lot of different ones starting price was $25 - $150 for a case to hold one slimline pen. The friends I am making them for don't want to add another $25 just for a case. They also have 2 speciality clips 2 Catholic cross clips & 2 Medical symbol.
The did look kind of big but Any type of real or fake leather case will do. They don't want to pay more then about $5 for the case. Any ideas?
Ernie at Beartooth Woods had some fairly inexpensive faux leather cases in the past. He is out of stock on the one I previously got, but you maght check with him and see if he will have any more, or look at the one he has in stock.