Vacuum inside and out for a quick spruce up to remove any fur or debris.
 If you notice some parts are still dirty or stained after vacuuming, gently brush using a soft bristle brush.
You may need to use a damp sponge to remove any other more stubborn stains but once removed, simply leave the area to air dry. 
For a deeper clean, gently hand wash with luke warm water (don't use too much water). Drain and press the remaining water with your hands and reshape whilst damp. Leave to air dry.
Due to our creations being made from natural lambs wool, if you do decide to machine wash, wash on the coolest setting possible and slowest spin to avoid damage and shrinkage of your creation. 
Do not tumble dry.
If entrance hole is too narrow, simply cut with sharp scissors around perimeter.