Cleaning silicone

Cleaning silicone

Hi All, I made pumpkin bread and used silicone bake molds. The bread turned out great, but I can't get the silicone bakeware clean. I've soaked them in hot hot water, soaked them in hot hot soapy water, used a scrubber, a brush, a towel, picked at them with my fingers... The tops are still sticky and the crevices are stubborn. It doesn't help that the molds are shaped like leaves and pumpkins. So, any ideas on how to clean these up? Thank you so much, Happy Thanksgiving!!!
Rambler with dahlias

Rambler with dahlias

A Case for bush (dwarf?) beans

A Case for bush (dwarf?) beans

How to make it look like an 18 year olds room

How to make it look like an 18 year olds room

Will my hydrangeas come back?

Will my hydrangeas come back?

~Help needed~ *new room*

~Help needed~ *new room*

At my terrace…

At my terrace…