David Hare-Scott wrote:
I am
> in rural Australia so a trip to a big store in the USA to buy some dandy
> device is not on.
>
> I am thinking of making a cover out of fencing wire and metal insect mesh
> that exactly fits the tray. What do you think?
>
> David
>
>

I have never seen a splatter screen for the oven, but the US
"dandy device" for stovetop frying is a round metal mesh screen
with a stiffer rim of metal around the edge for stability.

Can you get insect mesh in stainless steel? You want to avoid
both rust and metals that are not food-safe. Otherwise your plan
sounds quite workable.

gloria p