CEAT have added resources to their page for families to use: 
https://www.cheshireeast.gov.uk/livewell/local-offer-for-children-with-sen-and-disabilities/education/supporting-send-in-education/pupils-with-asc/resources-for-parents-parents-and-family.aspx
 

Free sensory planning with multisensory activities and messy play can be found here: 
https://www.empoweringlittleminds.co.uk/resources-1
 

Free resources available from Social Thinking: https://www.socialthinking.com/free-stuff/books-thinksheets

The National Autistic Society have added resources to their page:

https://www.autism.org.uk/services/helplines/coronavirus/resources/helpful-resources.aspx

 

 

Many of the activities found on the Speech and Language, SEMH and Motor Skills pages may be useful too.
Some resources can be found below to support working at home.