Thanks, ok I won't do this with food.Personally i wouldn’t because it effectively then becomes a food bowl and bowls aren’t really recommended.
We don’t recommend bowls because they can lead to food hogging but the main issue is that using a bowl removes the enrichment and mental stimulation of foraging (which is something piggies spend a vast amount of time wanting to do). Throw veg and nuggets into loose piles hay and let them search for it.
ThanksYes it’s ok to use them to hold liners down if your piggies are burrowing. A ceramic tile can also provide a cool place to sit in summer if they feel the need to.
You could just use some heavy wooden hides to hold liners down instead though