Over lockdown I started using suet pellets but found that after any rainfall they became a soggy clump. I had a look in my shed and found a few bits off previous home projects and constructed a covered feed hopper which keeps the rain off the pellets and stops droppings falling on to the pellets from birds feeding above. I used a ducting rectangle to round (toolstation code 36325) and an electrical socket back box(34329). Plus an off cut of 100 mm pipe and a plant pot saucer. All shaped using an angle grinder. I fill the hoppers every couple of days and get a good variety of birds feeding from them. It comes apart easy for cleaning. I noticed a rat was feeding from them but sorted this by putting a it of chicken wire over the feed tray.