Here is the snippet I am currently using to implement a basic DelegateCommand class.

CODE:

    public class DelegateCommand : ICommand
    {
        private Action _executeMethod;
        public DelegateCommand(Action executeMethod)
        {
            _executeMethod = executeMethod;
        }
        public bool CanExecute(object parameter)
        {
            return true;
        }
        public event EventHandler CanExecuteChanged;
        public void Execute(object parameter)
        {
            _executeMethod.Invoke();
        }
    }

Snippet file:

<?xml version="1.0" encoding="utf-8" ?>
<CodeSnippets  xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
	<CodeSnippet Format="1.0.0">
		<Header>
			<Title>delegate command</Title>
			<Shortcut>delcom</Shortcut>
			<Description>Creates basic delegate command class for MVVM / WPF.</Description>
			<Author>DevSQL, LLC (David Sandor)</Author>
			<SnippetTypes>
				<SnippetType>Expansion</SnippetType>
			</SnippetTypes>
		</Header>
		<Snippet>
			<Declarations>
				<Literal>
					<ID>namespace</ID>
					<ToolTip>Namespace</ToolTip>
					<Default>ViewModel</Default>
				</Literal>
			</Declarations>
			<Code Language="csharp"><![CDATA[
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;
namespace $namespace$
{
    public class DelegateCommand : ICommand
    {
        private Action _executeMethod;
        public DelegateCommand(Action executeMethod)
        {
            _executeMethod = executeMethod;
        }
        public bool CanExecute(object parameter)
        {
            return true;
        }
        public event EventHandler CanExecuteChanged;
        public void Execute(object parameter)
        {
            _executeMethod.Invoke();
        }
    }
}
$end$]]>
			</Code>
		</Snippet>
	</CodeSnippet>
</CodeSnippets>