reform and tighten a leather sheath??

[murderedsongbird]

i have a sweet blind horse knives long trail, but the leather sheath for it has loosened. is there any way for me to reform it or tighten it?

 

[booker]

Dont know if it would work but might try wrapping the blade in plastic wrap and wetting down the sheath?

 

[R.H.Clark]

Post a picture and maby we can come up with a few different ideas.