This may sound crazy, but it's true. You can clean small toys in the wash, no problem. Put them in a mesh bag and set your washer to sanitize. The toys will be grime- and germ-free.
Silicon trivets and oven mitts
Silicone trivets and oven mitts can be tossed in with your regular loads, as long as they're not too dirty. All they need is a warm wash cycle.
If putting them in with clothing worries you, put them in with a load of towels.
Small rugs and mats
Bathroom rugs and small rugs can be washed in the washer, but you need to be careful about your settings. Always use warm water and a gentle cycle. Cold or hot water can make them shrink or can crack the rubber liner on bath mats.