Custom Object Data in Webhooks as Tokens

Now that we can easily create custom objects, it would be nice to pass custom object data back inside a webhook as a token to support 3rd party applications.  I know this can be tricky because of many to many relations or many to one.  But in our case the lead has a one to one relationship because how we setup the immediate table.  Maybe you could do something like this.

{{CustomObject.FirstOrDefault.FieldName}}

{{CustomObject.LastOrDefault.FieldName}}

{{CustomObject.Index(2).FieldName}}

{{CustomObject.DedupeKeys("12345").FieldName}}

I know it sounds simple, but you guys are smart, Just food for thought .....

Thanks