A brief search at lunchtime today produced the following:
|Coleophora discordella case on Bird's-foot Trefoil|
|Coleophora lusciniaepennella case on (Goat?) Willow|
|Mottled Umber larva on Willow|
Think I'm right with the last one - it was on a willow leaf but there was some bramble very near by.