Laravel.io
<?php

//
// DatabaseSeeder.php
//

class DatabaseSeeder extends Seeder {

	/**
	 * Run the database seeds.
	 *
	 * @return void
	 */
	public function run()
	{
		Eloquent::unguard();

		$this->call('FacturesTableSeeder');
		$this->call('LeadsTableSeeder');
		$this->call('ClientsTableSeeder');
		$this->command->info('Valeurs ajoutées');
	}

}


<?php

//
// FacturesTableSeeder.php
//

class FacturesTableSeeder extends Seeder {

    public function run()
    {
        DB::table('factures')->delete();

        Facture::create(
            array(
            'client_id' => '1',
            'courtedescription' => 'Description test',
            'montant' => '1000',
            'etat' => 'En attente'
            )
        );
    }

}

<?php

//
// LeadsTableSeeder.php
//

class LeadsTableSeeder extends Seeder {

    public function run(){
        DB::table('notes')->delete();
        DB::table('leads')->delete();

        Lead::create(
            array(
            'nomopportunite' => 'Deneigement M Tremblay',
            'statut' => '1',
            'valeur' => '1000'
            )
        );

        Note::create(
            array(
            'contenudelanote' => 'Appel effectué le 19 mai 2032 à 9h du soir.',
            'lead_id' => '1'
            )
        );
    }

}

<?php

//
// ClientsTableSeeder.php
//

class ClientsTableSeeder extends Seeder {

    public function run(){
        DB::table('clients')->delete();

        Client::create(
            array(
            'prenom' => 'Jean',
            'nom' => 'Tremblay',
            'courriel' => 'jean@tremblay.com',
            'telephone' => '55555555555',
            'fax' => '4444444444',
            'adresse' => '555 des choses',
            'ville' => 'Villechose',
            'province' => 'Québec',
            'codepostal' => 'J3J3J3',
            'pays' => 'Canada',
            'entreprise' => 'Déneigement expert',
            'sitewebpersonnel' => 'www.google.com'
            )
        );

    }
}

Please note that all pasted data is publicly available.